{"title":"Water Tests","description":"\u003cp\u003eChoose a water test according to the parameter you want to measure. Compare kit contents, measuring range and instructions on the product page. Our range also includes reference solutions and laboratory test kits.\u003c\/p\u003e\u003cp\u003eExplore more: \u003ca href=\"\/en\/collections\/icp-analysen\"\u003eICP analysis kits\u003c\/a\u003e · \u003ca href=\"\/en\/collections\/wasserpflege-versorgung\"\u003ewater care\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"salifert-kh-alk-test","title":"SALIFERT KH\/ALK Test","description":"\u003cp\u003e\u003cstrong\u003eSALIFERT KH\/ALK Test\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTitration test for determining carbonate hardness or alkalinity in saltwater and freshwater. A clear color change facilitates the reading of small changes.\u003c\/p\u003e\n\u003ch3\u003eMeasuring range and benefits\u003c\/h3\u003e\n\u003cp\u003eAccording to the manufacturer, the resolution is approximately 0.3 °dKH or 0.1 meq\/l. Depending on the measurement mode, the kit is sufficient for approximately 100 to 200 measurements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Dose reagents exactly according to the enclosed instructions. For a reef aquarium, a stable KH value is particularly crucial.\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63517078978890,"sku":"CCP-777959","price":9.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/489_0.jpg?v=1789293153"},{"product_id":"salifert-calcium-ca-profi-test","title":"SALIFERT Calcium Ca Profi Test","description":"\u003cp\u003e\u003cstrong\u003eSALIFERT Calcium Ca Profi Test\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTitration test for determining the calcium level in marine and fresh water. The clear color change from pink-red to blue allows for an easy-to-read measurement.\u003c\/p\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eDose the water sample and reagents exactly according to the enclosed instructions and read the value using the supplied chart. Natural seawater typically has a calcium level of approximately 400–425 mg\/l.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Keep reagents out of the reach of children and avoid contact with skin and eyes.\u003c\/p\u003e\n\u003ch3\u003eTest version and syringe reading\u003c\/h3\u003e\u003cp\u003eSalifert states that reagents from different Calcium test versions must not be interchanged. Use the matching reagents and the chart supplied with the kit.\u003c\/p\u003e\u003cp\u003eIn the version described in the manufacturer’s instructions that uses a plastic tip, some air may remain below the plunger. It comes from the space between the syringe and tip and does not affect the result when the test is performed correctly. Follow your supplied kit’s instructions for the plunger position and reading; do not remove this air by filling the syringe differently.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.salifert.com\/instructions%20temp\/nv\/calcium_nv.pdf\"\u003eOfficial Salifert Calcium instructions (PDF)\u003c\/a\u003e\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63517079437642,"sku":"CCP-727434","price":12.0,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/22718_Product.webp?v=1789293161"},{"product_id":"salifert-nitrate-no3-test","title":"SALIFERT Nitrate NO3 Test","description":"\u003cp\u003e\u003cstrong\u003eSALIFERT Nitrate NO3 Test\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eColorimetric test for the rapid determination of nitrate levels. The wide measuring range of approximately 0.2 to 100 mg\/l is suitable for both nutrient-poor reef aquariums and tanks with higher nitrate levels.\u003c\/p\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003ePrepare the water sample and reagents according to the enclosed instructions and compare the developed color with the color chart. According to the manufacturer, the set is sufficient for approximately 60 measurements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Trends are particularly significant. Whenever possible, perform measurements under similar lighting conditions.\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63517079568714,"sku":"CCP-710940","price":11.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/nitrate-profi-test-salifert.png?v=1789293165"},{"product_id":"salifert-phosphate-po4-test","title":"SALIFERT Phosphate PO4 Test","description":"\u003cp\u003e\u003cstrong\u003eSALIFERT Phosphate PO4 Test\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSensitive color test for determining phosphate levels in saltwater and freshwater. According to the manufacturer, it detects values from approximately 0.015 mg\/l, helping to identify changes early.\u003c\/p\u003e\n\u003ch3\u003eApplication\u003c\/h3\u003e\n\u003cp\u003eMix the water sample and reagents according to the included instructions and compare the color with the scale. The set is sufficient for approximately 50 measurements.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e For comparable results, always read under similar lighting conditions and keep measuring instruments and vials clean.\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63517079896394,"sku":"CCP-703871","price":12.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/salifert-phosphate-po4-profi-test_b616e7a8-c6c7-48e3-b8cd-6bec44773fa4.png?v=1789928105"},{"product_id":"salifert-magnesium-test","title":"Salifert Magnesium Test","description":"\u003cp\u003e\u003cstrong\u003eSalifert Magnesium Test\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eTitration test for determining the magnesium content in seawater. The test is designed so that calcium and strontium do not distort the result within typical ranges.\u003c\/p\u003e\n\u003ch3\u003eMeasuring range and application\u003c\/h3\u003e\n\u003cp\u003eAccording to the manufacturer, the resolution is approximately 30 mg\/l; the kit is sufficient for about 50 measurements. Dose the sample and reagents exactly according to the enclosed instructions. As a guideline, natural seawater is approximately 1,300–1,400 mg\/l magnesium.\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63517080027466,"sku":"CCP-703870","price":12.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/71WbtRpJgIL._AC_UF8941000_QL80.jpg?v=1789293172"},{"product_id":"fauna-marin-multi-reference","title":"Fauna Marin Multi Reference 100 ml","description":"\u003cp\u003e\u003cstrong\u003eVariant \/ pack size:\u003c\/strong\u003e 100 ml\u003c\/p\u003e\u003cp\u003eSeawater-like reference solution for checking aquarium water test kits.\u003c\/p\u003e\u003ch3\u003eUse \u0026amp; notes\u003c\/h3\u003e\u003cp\u003eTake a clean sample and measure it as ordinary tank water. Compare against the current label reference values; do not return used solution to the bottle.\u003c\/p\u003e\u003cp\u003eFor the intended aquarium use only. Keep away from children and follow the current product label and safety instructions.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eFauna Marin GmbH, Gottlieb-Binder-Str. 9, 71088 Holzgerlingen, Deutschland. support@faunamarin.de. \u003ca href=\"https:\/\/www.faunamarincorals.de\/Multi-Reference-100ml\/17120V\"\u003eOfficial product information\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eDirect shipment by our supply partner within Germany only, estimated 2–3 business days. No pickup. Shipped separately from corals; the coral delivery date does not apply.\u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"100 ml","offer_id":63710625923402,"sku":"AP-FM-17120V","price":15.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/Multi_Reference_Material_RGB_1200x1200px_ND_3305.png?v=1790537051"},{"product_id":"fauna-marin-salinity-reference","title":"Fauna Marin Salinity Reference 100 ml","description":"\u003cp\u003e\u003cstrong\u003eVariant \/ pack size:\u003c\/strong\u003e 100 ml\u003c\/p\u003e\u003cp\u003e35 ppt reference solution for refractometers and compatible salinity instruments.\u003c\/p\u003e\u003ch3\u003eUse \u0026amp; notes\u003c\/h3\u003e\u003cp\u003eUse only for checking or maintaining compatible measuring equipment; do not dose into the aquarium. Follow the current label values and procedure.\u003c\/p\u003e\u003cp\u003eFor the intended aquarium use only. Keep away from children and follow the current product label and safety instructions.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eFauna Marin GmbH, Gottlieb-Binder-Str. 9, 71088 Holzgerlingen, Deutschland. support@faunamarin.de. \u003ca href=\"https:\/\/www.faunamarincorals.de\/Salinity-Reference-100ml\/17125V\"\u003eOfficial product information\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eDirect shipment by our supply partner within Germany only, estimated 2–3 business days. No pickup. Shipped separately from corals; the coral delivery date does not apply.\u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"100 ml","offer_id":63710626054474,"sku":"AP-FM-17125V","price":6.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/Salinity_Reference_100ml_1200x1200px_RGB_3307.png?v=1790537053"},{"product_id":"fauna-marin-aquahometest-no2-no3","title":"Fauna Marin AquaHomeTest NO2 + NO3","description":"\u003cp\u003eCombined nitrite and nitrate test for marine aquariums.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVariant \/ pack size:\u003c\/strong\u003e Testset\u003c\/p\u003e\u003ch3\u003eUse \u0026amp; notes\u003c\/h3\u003e\u003cp\u003eRanges: NO2 0–1 mg\/l, NO3 0–20 mg\/l. Approximately 50 tests. Includes comparator and reference standard; follow the supplied instructions precisely.\u003c\/p\u003e\u003cp\u003eFor aquarium use only. Follow the current label and safety instructions. Keep out of reach of children.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eFauna Marin GmbH, Gottlieb-Binder-Str. 9, 71088 Holzgerlingen, Deutschland. support@faunamarin.de. \u003ca href=\"https:\/\/www.faunamarincorals.de\/AquaHomeTest-NO2-NO3\/20600V\"\u003eOfficial product information\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eDirect shipment by our supply partner within Germany only, estimated 2–3 business days. No pickup. Shipped separately from corals; the coral delivery date does not apply.\u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"Test kit","offer_id":63711135826250,"sku":"AP-FM-20600V","price":45.89,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/AQHT_NO232_6450.png?v=1790542619"},{"product_id":"fauna-marin-aquahometest-no2-no3-refill","title":"Fauna Marin AquaHomeTest NO2 + NO3 Refill","description":"\u003cp\u003eReagent refill for the Fauna Marin nitrite\/nitrate test.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVariant \/ pack size:\u003c\/strong\u003e Refill\u003c\/p\u003e\u003ch3\u003eUse \u0026amp; notes\u003c\/h3\u003e\u003cp\u003eRequires the matching AquaHomeTest kit and measuring accessories. This is not a complete test case. Follow the kit instructions for measurement and interpretation.\u003c\/p\u003e\u003cp\u003eFor aquarium use only. Follow the current label and safety instructions. Keep out of reach of children.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eFauna Marin GmbH, Gottlieb-Binder-Str. 9, 71088 Holzgerlingen, Deutschland. support@faunamarin.de. \u003ca href=\"https:\/\/www.faunamarincorals.de\/AquaHomeTest-Refill-Kit-NO2-NO3\/20601V\"\u003eOfficial product information\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eDirect shipment by our supply partner within Germany only, estimated 2–3 business days. No pickup. Shipped separately from corals; the coral delivery date does not apply.\u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"Refill","offer_id":63711135859018,"sku":"AP-FM-20601V","price":22.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/20601_3378.png?v=1790542620"},{"product_id":"fauna-marin-aquahometest-po4-refill","title":"Fauna Marin AquaHomeTest PO4 Refill","description":"\u003cp\u003eReagent refill for the Fauna Marin phosphate test.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVariant \/ pack size:\u003c\/strong\u003e Refill\u003c\/p\u003e\u003ch3\u003eUse \u0026amp; notes\u003c\/h3\u003e\u003cp\u003eRequires the matching AquaHomeTest PO4 kit and accessories. Do not add reagents to the aquarium; keep out of reach of children.\u003c\/p\u003e\u003cp\u003eFor aquarium use only. Follow the current label and safety instructions. Keep out of reach of children.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eFauna Marin GmbH, Gottlieb-Binder-Str. 9, 71088 Holzgerlingen, Deutschland. support@faunamarin.de. \u003ca href=\"https:\/\/www.faunamarincorals.de\/AquaHomeTest-Refill-Kit-PO4\/20611V\"\u003eOfficial product information\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eDirect shipment by our supply partner within Germany only, estimated 2–3 business days. No pickup. Shipped separately from corals; the coral delivery date does not apply.\u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"Refill","offer_id":63711135891786,"sku":"AP-FM-20611V","price":17.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/20611_3382.png?v=1790542621"},{"product_id":"fauna-marin-aquahometest-k","title":"Fauna Marin AquaHomeTest K","description":"\u003cp\u003eTitration test for measuring potassium in saltwater.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVariant \/ pack size:\u003c\/strong\u003e Testset\u003c\/p\u003e\u003ch3\u003eUse \u0026amp; notes\u003c\/h3\u003e\u003cp\u003eRange 300–500 mg\/l; resolution 5 mg\/l. Determine the correction value as instructed. Solution C: flammable liquid and vapour. Keep away from heat, sparks and flames; no smoking.\u003c\/p\u003e\u003cp\u003eFor aquarium use only. Follow the current label and safety instructions. Keep out of reach of children.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eFauna Marin GmbH, Gottlieb-Binder-Str. 9, 71088 Holzgerlingen, Deutschland. support@faunamarin.de. \u003ca href=\"https:\/\/www.faunamarincorals.de\/AquaHomeTest-K\/20615V\"\u003eOfficial product information\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eDirect shipment by our supply partner within Germany only, estimated 2–3 business days. No pickup. Shipped separately from corals; the coral delivery date does not apply.\u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"Test kit","offer_id":63711135924554,"sku":"AP-FM-20615V","price":39.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/AQHT_Kalium_SHOP_RGB_1200x1200px_3374.png?v=1790542622"},{"product_id":"fauna-marin-aquahometest-k-refill","title":"Fauna Marin AquaHomeTest K Refill","description":"\u003cp\u003eReagent refill for the Fauna Marin potassium test.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVariant \/ pack size:\u003c\/strong\u003e Refill\u003c\/p\u003e\u003ch3\u003eUse \u0026amp; notes\u003c\/h3\u003e\u003cp\u003eRequires the matching potassium test kit. Solution C: flammable liquid and vapour. Keep away from heat, sparks and flames; no smoking.\u003c\/p\u003e\u003cp\u003eFor aquarium use only. Follow the current label and safety instructions. Keep out of reach of children.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eFauna Marin GmbH, Gottlieb-Binder-Str. 9, 71088 Holzgerlingen, Deutschland. support@faunamarin.de. \u003ca href=\"https:\/\/www.faunamarincorals.de\/AquaHomeTest-Refill-Kit-K\/20616V\"\u003eOfficial product information\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eDirect shipment by our supply partner within Germany only, estimated 2–3 business days. No pickup. Shipped separately from corals; the coral delivery date does not apply.\u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"Refill","offer_id":63711135957322,"sku":"AP-FM-20616V","price":28.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/20616_3384.png?v=1790542624"},{"product_id":"fauna-marin-aquahometest-kh","title":"Fauna Marin AquaHomeTest KH","description":"\u003cp\u003eTitration test for carbonate hardness or alkalinity in saltwater.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVariant \/ pack size:\u003c\/strong\u003e Testset\u003c\/p\u003e\u003ch3\u003eUse \u0026amp; notes\u003c\/h3\u003e\u003cp\u003eRange 0.1–20 dKH. About 50 tests at 0.1 dKH resolution or 100 at 0.2 dKH, based on KH 10. Flammable liquid and vapour; keep away from ignition sources.\u003c\/p\u003e\u003cp\u003eFor aquarium use only. Follow the current label and safety instructions. Keep out of reach of children.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eFauna Marin GmbH, Gottlieb-Binder-Str. 9, 71088 Holzgerlingen, Deutschland. support@faunamarin.de. \u003ca href=\"https:\/\/www.faunamarincorals.de\/AquaHomeTest-KH\/20620V\"\u003eOfficial product information\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eDirect shipment by our supply partner within Germany only, estimated 2–3 business days. No pickup. Shipped separately from corals; the coral delivery date does not apply.\u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"Test kit","offer_id":63711135990090,"sku":"AP-FM-20620V","price":27.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/AQHT_Karbonathaerte_SHOP_RGB_1200x1200px_10721.png?v=1790542625"},{"product_id":"fauna-marin-aquahometest-kh-refill","title":"Fauna Marin AquaHomeTest KH Refill","description":"\u003cp\u003eReagent refill for the AquaHomeTest KH\/Alkalinity test.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVariant \/ pack size:\u003c\/strong\u003e Refill\u003c\/p\u003e\u003ch3\u003eUse \u0026amp; notes\u003c\/h3\u003e\u003cp\u003eRequires matching measuring accessories. Flammable liquid and vapour; keep away from heat, sparks and flames. No smoking.\u003c\/p\u003e\u003cp\u003eFor aquarium use only. Follow the current label and safety instructions. Keep out of reach of children.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eFauna Marin GmbH, Gottlieb-Binder-Str. 9, 71088 Holzgerlingen, Deutschland. support@faunamarin.de. \u003ca href=\"https:\/\/www.faunamarincorals.de\/AquaHomeTest-Refill-Kit-KH\/20621V\"\u003eOfficial product information\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eDirect shipment by our supply partner within Germany only, estimated 2–3 business days. No pickup. Shipped separately from corals; the coral delivery date does not apply.\u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"Refill","offer_id":63711136022858,"sku":"AP-FM-20621V","price":15.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/20621_3386.png?v=1790542626"},{"product_id":"tropic-marin-ca-mg-test-professional","title":"Tropic Marin Ca\/Mg Combitest Professional","description":"\u003cp\u003eMarine test for calcium (300–498 mg\/l, resolution 4 mg\/l) and magnesium (820–1800 mg\/l, resolution 20 mg\/l).\u003c\/p\u003e\u003ch3\u003eApplication\u003c\/h3\u003e\u003cp\u003eMeasure calcium first, then magnesium using the same sample. Use separate syringes for each reagent. Follow the supplied instructions and tables exactly.\u003c\/p\u003e\u003cp\u003eFollow the instructions on the delivered package. For aquarium use; keep out of reach of children.\u003c\/p\u003e\u003ch3\u003ePack and image\u003c\/h3\u003e\u003cp\u003eGenuine product-family image. Only the selected pack is supplied, not a set of every pictured pack.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/ca-mg-test-professional?lang=en\"\u003eOfficial product information and instructions\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"Testset","offer_id":63816313471306,"sku":"AP-TM-300028380","price":54.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-ca-mg-test-professional-transparent.png?v=1791235635"},{"product_id":"tropic-marin-kh-test-professional","title":"Tropic Marin KH\/Alkalinity Test Professional","description":"\u003cp\u003eFreshwater and marine alkalinity test; range 0.1–20 dKH, resolution 0.1 dKH.\u003c\/p\u003e\u003ch3\u003eApplication\u003c\/h3\u003e\u003cp\u003eTitrate the precisely measured sample following the supplied instructions. Store cool and dark; six months shelf life after opening.\u003c\/p\u003e\u003cp\u003eFollow the instructions on the delivered package. For aquarium use; keep out of reach of children.\u003c\/p\u003e\u003ch3\u003ePack and image\u003c\/h3\u003e\u003cp\u003eGenuine product-family image. Only the selected pack is supplied, not a set of every pictured pack.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/kh-test-professional?lang=en\"\u003eOfficial product information and instructions\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"Testset","offer_id":63816313569610,"sku":"AP-TM-300028340","price":32.4,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-kh-test-professional-transparent.png?v=1791235637"},{"product_id":"tropic-marin-kh-test","title":"Tropic Marin KH\/Alkalinity Test","description":"\u003cp\u003eFreshwater and marine alkalinity test; range 1–20 dKH, resolution 0.5 or 1 dKH.\u003c\/p\u003e\u003ch3\u003eApplication\u003c\/h3\u003e\u003cp\u003eWith a 5 ml sample, one drop equals 1 dKH; with 10 ml, 0.5 dKH. Follow the instructions. Store cool and dark; six months after opening.\u003c\/p\u003e\u003cp\u003eFollow the instructions on the delivered package. For aquarium use; keep out of reach of children.\u003c\/p\u003e\u003ch3\u003ePack and image\u003c\/h3\u003e\u003cp\u003eGenuine product-family image. Only the selected pack is supplied, not a set of every pictured pack.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/kh-test?lang=en\"\u003eOfficial product information and instructions\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"Testset","offer_id":63816313635146,"sku":"AP-TM-300028240","price":14.3,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-kh-test-transparent.png?v=1791235637"},{"product_id":"tropic-marin-po4-test-professional","title":"Tropic Marin PO4 phosphate test Professional","description":"\u003cp\u003eFreshwater and marine phosphate test; range 0.01–1.0 mg\/l, resolution 0.02 mg\/l.\u003c\/p\u003e\u003ch3\u003eApplication\u003c\/h3\u003e\u003cp\u003eReagent quantities differ for freshwater and marine water. Use the reference sample and supplied colour chart; follow exact quantities and waiting times in the manual.\u003c\/p\u003e\u003cp\u003eFollow the instructions on the delivered package. For aquarium use; keep out of reach of children.\u003c\/p\u003e\u003ch3\u003ePack and image\u003c\/h3\u003e\u003cp\u003eGenuine product-family image. Only the selected pack is supplied, not a set of every pictured pack.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/po4-test-professional?lang=en\"\u003eOfficial product information and instructions\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"Testset","offer_id":63816313700682,"sku":"AP-TM-300028350","price":30.8,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-po4-test-professional-transparent.png?v=1791235639"},{"product_id":"tropic-marin-no2-no3-test","title":"Tropic Marin NO2\/NO3 nitrite\/nitrate test","description":"\u003cp\u003eFreshwater and marine test: nitrite 0–2 mg\/l and nitrate 0.5–50 mg\/l; resolution 0.02 and 0.5 mg\/l respectively.\u003c\/p\u003e\u003ch3\u003eApplication\u003c\/h3\u003e\u003cp\u003eNitrite affects nitrate readings: measure nitrite first and correct nitrate using the manufacturer table when needed. Store cool and dark; six months after opening.\u003c\/p\u003e\u003cp\u003eFollow the instructions on the delivered package. For aquarium use; keep out of reach of children.\u003c\/p\u003e\u003ch3\u003ePack and image\u003c\/h3\u003e\u003cp\u003eGenuine product-family image. Only the selected pack is supplied, not a set of every pictured pack.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/no2-no3-test?lang=en\"\u003eOfficial product information and instructions\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"Testset","offer_id":63816313864522,"sku":"AP-TM-300028260","price":26.4,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-no2-no3-test-transparent.png?v=1791235639"},{"product_id":"tropic-marin-k-test-professional","title":"Tropic Marin K+ potassium test Professional","description":"\u003cp\u003eMarine potassium test; range 300–500 mg\/l, resolution 5 mg\/l.\u003c\/p\u003e\u003ch3\u003eApplication\u003c\/h3\u003e\u003cp\u003eDetermine a correction value using the supplied standard and renew it every 3–4 weeks. Clean syringes and cuvettes carefully. Store cool and dark; six months after opening.\u003c\/p\u003e\u003cp\u003eFollow the instructions on the delivered package. For aquarium use; keep out of reach of children.\u003c\/p\u003e\u003ch3\u003ePack and image\u003c\/h3\u003e\u003cp\u003eGenuine product-family image. Only the selected pack is supplied, not a set of every pictured pack.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/k-test-professional?lang=en\"\u003eOfficial product information and instructions\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"Testset","offer_id":63816313930058,"sku":"AP-TM-300028390","price":48.3,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-k-test-professional-transparent.png?v=1791235641"},{"product_id":"tropic-marin-compact-lab","title":"Tropic Marin Compact Lab marine test kit","description":"\u003cp\u003eMarine test kit for pH, alkalinity, phosphate, nitrite\/nitrate and ammonium\/ammonia.\u003c\/p\u003e\u003ch3\u003eApplication\u003c\/h3\u003e\u003cp\u003eAround 100 pH and alkalinity measurements and 50 for each of the other three test procedures. Follow each test’s own instructions and keep reagents separate.\u003c\/p\u003e\u003cp\u003eFollow the instructions on the delivered package. For aquarium use; keep out of reach of children.\u003c\/p\u003e\u003ch3\u003ePack and image\u003c\/h3\u003e\u003cp\u003eGenuine product-family image. Only the selected pack is supplied, not a set of every pictured pack.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/compact-lab?lang=en\"\u003eOfficial product information and instructions\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"Testset","offer_id":63816313995594,"sku":"AP-TM-300028500","price":84.1,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-compact-lab-transparent.png?v=1791235642"},{"product_id":"tropic-marin-ph-test","title":"Tropic Marin pH test for marine water","description":"\u003cp\u003eMarine pH test; range 7.4–9.4, resolution 0.2–0.3.\u003c\/p\u003e\u003ch3\u003eApplication\u003c\/h3\u003e\u003cp\u003eCompare a 5 ml sample and one reagent drop using the supplied colour chart. Store cool and dark; six months after opening.\u003c\/p\u003e\u003cp\u003eFollow the instructions on the delivered package. For aquarium use; keep out of reach of children.\u003c\/p\u003e\u003ch3\u003ePack and image\u003c\/h3\u003e\u003cp\u003eGenuine product-family image. Only the selected pack is supplied, not a set of every pictured pack.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/ph-test?lang=en\"\u003eOfficial product information and instructions\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"Testset","offer_id":63816314159434,"sku":"AP-TM-300028210","price":14.3,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-ph-test-transparent.png?v=1791235644"},{"product_id":"tropic-marin-icp-water-analysis","title":"Tropic Marin ICP Water Analysis","description":"\u003cp\u003eICP-OES laboratory analysis of more than 35 chemical elements in a marine aquarium water sample. Results and history are available in the Tropic Marin laboratory portal.\u003c\/p\u003e\u003ch3\u003eUse\u003c\/h3\u003e\u003cp\u003eRegister the aquarium and individual sample number at lab.tropic-marin.com before sending. Rinse the supplied containers as instructed, collect samples with syringe and filter, label them and send to the stated laboratory address. Unregistered samples cannot be assigned.\u003c\/p\u003e\u003ch3\u003eComposition and pack\u003c\/h3\u003e\u003cp\u003eSample kit with cuvettes, syringe, syringe filter and labels. The selected variant determines the number of analyses.\u003c\/p\u003e\u003cp\u003eThe selected pack size is stated by the variant; the original image shows the product family.\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eFor the intended aquarium use only. Keep out of reach of children. Follow the current label and supplied safety information.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin.com\/icp-water-analysis?lang=en\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Test","offer_id":63829157118282,"sku":"AP-TM-300028810","price":27.9,"currency_code":"EUR","in_stock":true},{"title":"6 Tests","offer_id":63829157151050,"sku":"AP-TM-300028816","price":134.9,"currency_code":"EUR","in_stock":true},{"title":"3 Tests","offer_id":63905199751498,"sku":"AP-TM-300028813","price":71.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-icp-water-analysis-transparent.png?v=1791310320"},{"product_id":"tropic-marin-icp-water-analysis-plus","title":"Tropic Marin ICP Water Analysis Plus","description":"\u003cp\u003eExtended marine-water laboratory analysis using ICP-OES and additional methods for other parameters and nutrients; an RO-water sample is also tested.\u003c\/p\u003e\u003ch3\u003eUse\u003c\/h3\u003e\u003cp\u003eRegister the aquarium and individual sample number in the laboratory portal before sending. Collect marine and RO water in the designated containers following the supplied instructions, label correctly and send. Results are available online and as PDF.\u003c\/p\u003e\u003ch3\u003eComposition and pack\u003c\/h3\u003e\u003cp\u003eContainers for marine and RO water, syringe, syringe filter and labels. The variant determines the number of analyses.\u003c\/p\u003e\u003cp\u003eThe selected pack size is stated by the variant; the original image shows the product family.\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eFor the intended aquarium use only. Keep out of reach of children. Follow the current label and supplied safety information.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin.com\/icp-water-analysis-plus?lang=en\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Test","offer_id":63829157183818,"sku":"AP-TM-300028820","price":44.2,"currency_code":"EUR","in_stock":true},{"title":"6 Tests","offer_id":63829157216586,"sku":"AP-TM-300028826","price":214.9,"currency_code":"EUR","in_stock":true},{"title":"3 Tests","offer_id":63905203880266,"sku":"AP-TM-300028823","price":114.9,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-icp-water-analysis-plus-transparent.png?v=1791310321"},{"product_id":"tropic-marin-nh4-nh3-test","title":"Tropic Marin NH4+\/NH3 Ammonium \/ Ammonia Test","description":"\u003cp\u003eColour test for ammonium and ammonia in fresh and marine water. Range 0.02–3.0 mg\/l; manufacturer-stated accuracy 0.03 mg\/l.\u003c\/p\u003e\u003ch3\u003eUse\u003c\/h3\u003e\u003cp\u003ePrepare the sample and reagents exactly as instructed. Determine ammonia with the supplied table, taking pH into account. Store cool and dark; the manufacturer specifies six months after opening.\u003c\/p\u003e\u003ch3\u003eComposition and pack\u003c\/h3\u003e\u003cp\u003eTest reagents and measuring accessories; consult the supplied instructions for contents and safety information.\u003c\/p\u003e\u003cp\u003eThe selected pack size is stated by the variant; the original image shows the product family.\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eFor the intended aquarium use only. Keep out of reach of children. Follow the current label and supplied safety information.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin.com\/nh4-nh3-test?lang=en\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Set","offer_id":63829157282122,"sku":"AP-TM-300028270","price":24.4,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-nh4-nh3-test-transparent.png?v=1791310323"},{"product_id":"tropic-marin-multi-standard","title":"Tropic Marin Multi-Standard","description":"\u003cp\u003eLaboratory-checked reference solution for verifying calcium, magnesium, potassium and alkalinity tests in marine aquariums.\u003c\/p\u003e\u003ch3\u003eUse\u003c\/h3\u003e\u003cp\u003eTest the reference solution instead of aquarium water according to the instructions for the relevant kit. Compare with the current target values printed on the bottle. For deviations, the correction factor is target value divided by measured value. The manufacturer recommends checking every 2–4 weeks; use the actual bottle values.\u003c\/p\u003e\u003ch3\u003eComposition and pack\u003c\/h3\u003e\u003cp\u003eCalcium chloride, sodium bicarbonate, magnesium chloride, potassium chloride.\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eFor the intended aquarium use only. Keep out of reach of children. Follow the current label and supplied safety instructions.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/multi-standard?lang=en\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"250 ml","offer_id":63829771649354,"sku":"AP-TM-300028150","price":16.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-multi-standard-transparent.png?v=1791315695"},{"product_id":"tropic-marin-np-standard","title":"Tropic Marin NP-Standard","description":"\u003cp\u003eReference solution with known nitrate and phosphate concentrations for checking nitrate and phosphate test reagents.\u003c\/p\u003e\u003ch3\u003eUse\u003c\/h3\u003e\u003cp\u003eCheck using RO or demineralised water and the amount of standard specified for the test being used. After dilution, the target is 2 mg\/l nitrate or about 0.2 mg\/l phosphate. Replace the kit for large deviations; otherwise a correction factor can be calculated. Recheck every 2–4 weeks. The required amount of standard depends on the test.\u003c\/p\u003e\u003ch3\u003eComposition and pack\u003c\/h3\u003e\u003cp\u003eReference solution containing 75 mg\/l nitrate and 7.5 mg\/l phosphate before the prescribed dilution.\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eFor the intended aquarium use only. Keep out of reach of children. Follow the current label and supplied safety instructions.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin.com\/np-standard?lang=en\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"50 ml","offer_id":63829771682122,"sku":"AP-TM-300028160","price":12.8,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-np-standard-transparent.png?v=1791315697"},{"product_id":"tropic-marin-po4-test","title":"Tropic Marin PO4 Phosphate Test","description":"\u003cp\u003ePhosphate test for fresh and marine water, with a range of 0.03–3.0 mg\/l and manufacturer-stated accuracy of 0.05 mg\/l.\u003c\/p\u003e\u003ch3\u003eUse\u003c\/h3\u003e\u003cp\u003eShake the reagents before use. Fill each of the two cuvettes with 5 ml aquarium water and retain one as the reference. For marine water, add 10 drops of reagent A followed by 4 drops of B to the test cuvette, shaking briefly after each. Read with the comparator after 2 minutes under suitable lighting. The number of A drops differs for freshwater; follow the supplied instructions. Store cool and dark; the manufacturer specifies six months after opening.\u003c\/p\u003e\u003ch3\u003eComposition and pack\u003c\/h3\u003e\u003cp\u003eReagents A and B, two glass cuvettes, dosing syringe, colour card, comparator and instructions.\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eFor the intended aquarium use only. Keep out of reach of children. Follow the current label and supplied safety instructions.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin.com\/po4-test?lang=en\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Testset","offer_id":63829771714890,"sku":"AP-TM-300028250","price":23.3,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-po4-test-transparent.png?v=1791315698"},{"product_id":"tropic-marin-no2-no3-test-professional","title":"Tropic Marin NO2\/NO3 Nitrite \/ Nitrate Test Professional","description":"\u003cp\u003ePrecision nitrite and nitrate test for fresh and marine water: nitrite 0–1.0 mg\/l, nitrate 0–20 mg\/l. Manufacturer-stated accuracy: 0.002 mg\/l nitrite and 0.05 mg\/l nitrate.\u003c\/p\u003e\u003ch3\u003eUse\u003c\/h3\u003e\u003cp\u003eMeasure both parameters separately following the supplied instructions. Nitrite can affect the nitrate reading, so use the supplied correction table where required. For nitrate above 20 mg\/l, follow the prescribed dilution. The standard solution checks reagent functionality. Store cool and dark; the manufacturer specifies six months after opening.\u003c\/p\u003e\u003ch3\u003eComposition and pack\u003c\/h3\u003e\u003cp\u003eReagents A, B and C, standard solution, glass cuvette, dosing syringes, colour cards, comparator and instructions.\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eFor the intended aquarium use only. Keep out of reach of children. Follow the current label and supplied safety instructions.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin.com\/no2-no3-test-professional?lang=en\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Testset","offer_id":63829771813194,"sku":"AP-TM-300028360","price":42.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-no2-no3-test-professional-transparent.png?v=1791315699"},{"product_id":"tropic-marin-precision-hydrometer-density","title":"Tropic Marin Precision Density Hydrometer","description":"\u003ch2\u003eTropic Marin Precision Density Hydrometer\u003c\/h2\u003e\u003cp\u003ePrecision hydrometer made from mouth-blown glass for measuring density in marine aquariums. Article 51001 measures density in kg\/l, not specific gravity. Measuring range 1.018–1.028 kg\/l, resolution 0.0001 kg\/l; the manufacturer specifies a maximum deviation of 0.001 at 25 °C. A measuring cylinder is not included with this individual item.\u003c\/p\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eBring the seawater sample to 25 °C and use a sufficiently deep measuring cylinder. Immerse the clean, dry hydrometer and allow it to float freely. Read at the water surface, not at the raised meniscus. Choose the range suitable for the aquarium inhabitants; the manufacturer recommends 1.022–1.024 kg\/l at 25 °C. Remove salt residues with tap or RO water after use and handle the glass carefully.\u003c\/p\u003e\u003ch3\u003eComposition and included items\u003c\/h3\u003e\u003cp\u003eOne mouth-blown glass precision hydrometer, manufacturer article 51001. A separate measuring cylinder is required.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eFor intended aquarium use only. Keep out of reach of children and follow the current packaging and safety information.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/cylinder\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Aräometer","offer_id":63830002696522,"sku":"AP-TM-300051001","price":58.7,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-precision-hydrometer-density-transparent.png?v=1791317410"},{"product_id":"tropic-marin-cylinder-with-density-hydrometer","title":"Tropic Marin Measuring Cylinder with Density Hydrometer","description":"\u003ch2\u003eTropic Marin Measuring Cylinder with Density Hydrometer\u003c\/h2\u003e\u003cp\u003eSet containing a measuring cylinder and precision hydrometer for density measurement in marine aquariums, manufacturer article 51011. The 36 cm tall polypropylene cylinder has a maximum capacity of 500 ml, a stable base, a pouring spout and raised graduations. The glass hydrometer measures density in kg\/l, not specific gravity: range 1.018–1.028 kg\/l, resolution 0.0001 kg\/l and manufacturer-stated maximum deviation of 0.001 at 25 °C.\u003c\/p\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eFor measurement, fill the cylinder with no more than 400 ml of seawater at 25 °C. Insert the clean, dry hydrometer and allow it to float freely. Read density at the water surface, not at the meniscus. Depending on aquarium inhabitants, the manufacturer recommends 1.022–1.024 kg\/l at 25 °C. Rinse with tap or RO water after use to remove salt residues and handle the glass carefully. The 500 ml refers to cylinder capacity, not supplied liquid contents.\u003c\/p\u003e\u003ch3\u003eComposition and included items\u003c\/h3\u003e\u003cp\u003ePolypropylene measuring cylinder and mouth-blown glass precision hydrometer, supplied as manufacturer set 51011.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eFor intended aquarium use only. Keep out of reach of children and follow the current packaging and safety information.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/cylinder\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Set","offer_id":63830002729290,"sku":"AP-TM-300051011","price":81.7,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-cylinder-with-density-hydrometer-transparent.png?v=1791317412"},{"product_id":"tropic-marin-ca-mg-test-professional-refill","title":"Tropic Marin Calcium \/ Magnesium Test Professional Refill","description":"\u003ch2\u003eTropic Marin Calcium \/ Magnesium Test Professional Refill\u003c\/h2\u003e\u003cp\u003eReagent refill for the Tropic Marin Calcium \/ Magnesium Test Professional, manufacturer article 28790. It replenishes the reagents for measuring calcium and magnesium in marine water. This item is a refill pack, not a complete test kit.\u003c\/p\u003e\u003ch3\u003eCompatibility and included items\u003c\/h3\u003e\u003cp\u003eUse only with the corresponding Calcium \/ Magnesium Test Professional kit and its original measuring equipment and instructions. Use the model-specific evaluation chart only where supplied for that kit. Professional-model reagents are not a substitute for the basic-model refill. No additional measuring apparatus or complete test kit is included. Retain the equipment from your existing compatible kit.\u003c\/p\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eFollow the instructions supplied with the actual refill and compatible kit, including sample volumes, reagent order, mixing and waiting times. Read results under the recommended lighting. Where the test includes a standard solution, use it as instructed to check reagent performance. Avoid contaminating bottles or mixing caps. Store tightly closed in a cool, dark place and observe the shelf-life information on the actual packaging.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eFor aquarium water analysis only. Keep out of reach of children. Follow the hazard labels and current safety information on the actual packaging; avoid contact with eyes and skin.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/ca-mg-test-professional\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Nachfüllpackung","offer_id":63830207463754,"sku":"AP-TM-28790","price":32.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-ca-mg-test-professional-refill-transparent.png?v=1791319168"},{"product_id":"tropic-marin-ph-test-refill","title":"Tropic Marin Saltwater pH Test Refill","description":"\u003ch2\u003eTropic Marin Saltwater pH Test Refill\u003c\/h2\u003e\u003cp\u003eReagent refill for the Tropic Marin Saltwater pH Test, manufacturer article 28770. It replenishes the reagents for measuring pH in marine water. This item is a refill pack, not a complete test kit.\u003c\/p\u003e\u003ch3\u003eCompatibility and included items\u003c\/h3\u003e\u003cp\u003eUse only with the corresponding Saltwater pH Test kit and its original measuring equipment and instructions. Use the model-specific evaluation chart only where supplied for that kit. Do not substitute reagents for a Professional model. No additional measuring apparatus or complete test kit is included. Retain the equipment from your existing compatible kit.\u003c\/p\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eFollow the instructions supplied with the actual refill and compatible kit, including sample volumes, reagent order, mixing and waiting times. Read results under the recommended lighting. Where the test includes a standard solution, use it as instructed to check reagent performance. Avoid contaminating bottles or mixing caps. Store tightly closed in a cool, dark place and observe the shelf-life information on the actual packaging.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eFor aquarium water analysis only. Keep out of reach of children. Follow the hazard labels and current safety information on the actual packaging; avoid contact with eyes and skin.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/ph-test\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Nachfüllpackung","offer_id":63830207562058,"sku":"AP-TM-300028770","price":7.9,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-ph-test-refill-transparent.png?v=1791319169"},{"product_id":"tropic-marin-kh-test-refill","title":"Tropic Marin KH \/ Alkalinity Test Refill","description":"\u003ch2\u003eTropic Marin KH \/ Alkalinity Test Refill\u003c\/h2\u003e\u003cp\u003eReagent refill for the Tropic Marin KH \/ Alkalinity Test, manufacturer article 28776. It replenishes the reagents for measuring alkalinity in freshwater and marine water. This item is a refill pack, not a complete test kit.\u003c\/p\u003e\u003ch3\u003eCompatibility and included items\u003c\/h3\u003e\u003cp\u003eUse only with the corresponding KH \/ Alkalinity Test kit and its original measuring equipment and instructions. Use the model-specific evaluation chart only where supplied for that kit. Do not substitute reagents for a Professional model. No additional measuring apparatus or complete test kit is included. Retain the equipment from your existing compatible kit.\u003c\/p\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eFollow the instructions supplied with the actual refill and compatible kit, including sample volumes, reagent order, mixing and waiting times. Read results under the recommended lighting. Where the test includes a standard solution, use it as instructed to check reagent performance. Avoid contaminating bottles or mixing caps. Store tightly closed in a cool, dark place and observe the shelf-life information on the actual packaging.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eFor aquarium water analysis only. Keep out of reach of children. Follow the hazard labels and current safety information on the actual packaging; avoid contact with eyes and skin.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/kh-test\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Nachfüllpackung","offer_id":63830207725898,"sku":"AP-TM-300028776","price":7.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-kh-test-refill-transparent.png?v=1791319170"},{"product_id":"tropic-marin-po4-test-refill","title":"Tropic Marin PO4 Phosphate Test Refill","description":"\u003ch2\u003eTropic Marin PO4 Phosphate Test Refill\u003c\/h2\u003e\u003cp\u003eReagent refill for the Tropic Marin PO4 Phosphate Test, manufacturer article 28778. It replenishes the reagents for measuring phosphate in freshwater and marine water. This item is a refill pack, not a complete test kit.\u003c\/p\u003e\u003ch3\u003eCompatibility and included items\u003c\/h3\u003e\u003cp\u003eUse only with the corresponding PO4 Phosphate Test kit and its original measuring equipment and instructions. Use the model-specific evaluation chart only where supplied for that kit. Do not substitute reagents for a Professional model. No additional measuring apparatus or complete test kit is included. Retain the equipment from your existing compatible kit.\u003c\/p\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eFollow the instructions supplied with the actual refill and compatible kit, including sample volumes, reagent order, mixing and waiting times. Read results under the recommended lighting. Where the test includes a standard solution, use it as instructed to check reagent performance. Avoid contaminating bottles or mixing caps. Store tightly closed in a cool, dark place and observe the shelf-life information on the actual packaging.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eFor aquarium water analysis only. Keep out of reach of children. Follow the hazard labels and current safety information on the actual packaging; avoid contact with eyes and skin.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/po4-test\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Nachfüllpackung","offer_id":63830207824202,"sku":"AP-TM-300028778","price":12.8,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-po4-test-refill-transparent.png?v=1791319171"},{"product_id":"tropic-marin-no2-no3-test-refill","title":"Tropic Marin NO2\/NO3 Nitrite \/ Nitrate Test Refill","description":"\u003ch2\u003eTropic Marin NO2\/NO3 Nitrite \/ Nitrate Test Refill\u003c\/h2\u003e\u003cp\u003eReagent refill for the Tropic Marin NO2\/NO3 Nitrite \/ Nitrate Test, manufacturer article 28780. It replenishes the reagents for measuring nitrite and nitrate in freshwater and marine water. This item is a refill pack, not a complete test kit.\u003c\/p\u003e\u003ch3\u003eCompatibility and included items\u003c\/h3\u003e\u003cp\u003eUse only with the corresponding NO2\/NO3 Nitrite \/ Nitrate Test kit and its original measuring equipment and instructions. Use the model-specific evaluation chart only where supplied for that kit. Do not substitute reagents for a Professional model. No additional measuring apparatus or complete test kit is included. Retain the equipment from your existing compatible kit.\u003c\/p\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eFollow the instructions supplied with the actual refill and compatible kit, including sample volumes, reagent order, mixing and waiting times. Read results under the recommended lighting. Where the test includes a standard solution, use it as instructed to check reagent performance. Avoid contaminating bottles or mixing caps. Store tightly closed in a cool, dark place and observe the shelf-life information on the actual packaging.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eFor aquarium water analysis only. Keep out of reach of children. Follow the hazard labels and current safety information on the actual packaging; avoid contact with eyes and skin.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/no2-no3-test\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Nachfüllpackung","offer_id":63830207856970,"sku":"AP-TM-300028780","price":15.1,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-no2-no3-test-refill-transparent.png?v=1791319173"},{"product_id":"tropic-marin-nh4-nh3-test-refill","title":"Tropic Marin NH4\/NH3 Ammonium \/ Ammonia Test Refill","description":"\u003ch2\u003eTropic Marin NH4\/NH3 Ammonium \/ Ammonia Test Refill\u003c\/h2\u003e\u003cp\u003eReagent refill for the Tropic Marin NH4\/NH3 Ammonium \/ Ammonia Test, manufacturer article 28782. It replenishes the reagents for measuring ammonium and ammonia in freshwater and marine water. This item is a refill pack, not a complete test kit.\u003c\/p\u003e\u003ch3\u003eCompatibility and included items\u003c\/h3\u003e\u003cp\u003eUse only with the corresponding NH4\/NH3 Ammonium \/ Ammonia Test kit and its original measuring equipment and instructions. Use the model-specific evaluation chart only where supplied for that kit. Do not substitute reagents for a Professional model. No additional measuring apparatus or complete test kit is included. Retain the equipment from your existing compatible kit.\u003c\/p\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eFollow the instructions supplied with the actual refill and compatible kit, including sample volumes, reagent order, mixing and waiting times. Read results under the recommended lighting. Where the test includes a standard solution, use it as instructed to check reagent performance. Avoid contaminating bottles or mixing caps. Store tightly closed in a cool, dark place and observe the shelf-life information on the actual packaging.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eFor aquarium water analysis only. Keep out of reach of children. Follow the hazard labels and current safety information on the actual packaging; avoid contact with eyes and skin.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/nh4-nh3-test\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Nachfüllpackung","offer_id":63830207889738,"sku":"AP-TM-300028782","price":14.3,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-nh4-nh3-test-refill-transparent.png?v=1791319175"},{"product_id":"tropic-marin-kh-test-professional-refill","title":"Tropic Marin KH \/ Alkalinity Test Professional Refill","description":"\u003ch2\u003eTropic Marin KH \/ Alkalinity Test Professional Refill\u003c\/h2\u003e\u003cp\u003eReagent refill for the Tropic Marin KH \/ Alkalinity Test Professional, manufacturer article 28784. It replenishes the reagents for measuring alkalinity in freshwater and marine water. This item is a refill pack, not a complete test kit.\u003c\/p\u003e\u003ch3\u003eCompatibility and included items\u003c\/h3\u003e\u003cp\u003eUse only with the corresponding KH \/ Alkalinity Test Professional kit and its original measuring equipment and instructions. Use the model-specific evaluation chart only where supplied for that kit. Professional-model reagents are not a substitute for the basic-model refill. No additional measuring apparatus or complete test kit is included. Retain the equipment from your existing compatible kit.\u003c\/p\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eFollow the instructions supplied with the actual refill and compatible kit, including sample volumes, reagent order, mixing and waiting times. Read results under the recommended lighting. Where the test includes a standard solution, use it as instructed to check reagent performance. Avoid contaminating bottles or mixing caps. Store tightly closed in a cool, dark place and observe the shelf-life information on the actual packaging.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eFor aquarium water analysis only. Keep out of reach of children. Follow the hazard labels and current safety information on the actual packaging; avoid contact with eyes and skin.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/kh-test-professional\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Nachfüllpackung","offer_id":63830207955274,"sku":"AP-TM-300028784","price":15.6,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-kh-test-professional-refill-transparent.png?v=1791319175"},{"product_id":"tropic-marin-po4-test-professional-refill","title":"Tropic Marin PO4 Phosphate Test Professional Refill","description":"\u003ch2\u003eTropic Marin PO4 Phosphate Test Professional Refill\u003c\/h2\u003e\u003cp\u003eReagent refill for the Tropic Marin PO4 Phosphate Test Professional, manufacturer article 28786. It replenishes the reagents for measuring phosphate in freshwater and marine water. This item is a refill pack, not a complete test kit.\u003c\/p\u003e\u003ch3\u003eCompatibility and included items\u003c\/h3\u003e\u003cp\u003eUse only with the corresponding PO4 Phosphate Test Professional kit and its original measuring equipment and instructions. Use the model-specific evaluation chart only where supplied for that kit. Professional-model reagents are not a substitute for the basic-model refill. No additional measuring apparatus or complete test kit is included. Retain the equipment from your existing compatible kit.\u003c\/p\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eFollow the instructions supplied with the actual refill and compatible kit, including sample volumes, reagent order, mixing and waiting times. Read results under the recommended lighting. Where the test includes a standard solution, use it as instructed to check reagent performance. Avoid contaminating bottles or mixing caps. Store tightly closed in a cool, dark place and observe the shelf-life information on the actual packaging.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eFor aquarium water analysis only. Keep out of reach of children. Follow the hazard labels and current safety information on the actual packaging; avoid contact with eyes and skin.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/po4-test-professional\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Nachfüllpackung","offer_id":63830208053578,"sku":"AP-TM-300028786","price":17.1,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-po4-test-professional-refill-transparent.png?v=1791319176"},{"product_id":"tropic-marin-no2-no3-test-professional-refill","title":"Tropic Marin NO2\/NO3 Nitrite \/ Nitrate Test Professional Refill","description":"\u003ch2\u003eTropic Marin NO2\/NO3 Nitrite \/ Nitrate Test Professional Refill\u003c\/h2\u003e\u003cp\u003eReagent refill for the Tropic Marin NO2\/NO3 Nitrite \/ Nitrate Test Professional, manufacturer article 28788. It replenishes the reagents for measuring nitrite and nitrate in freshwater and marine water. This item is a refill pack, not a complete test kit.\u003c\/p\u003e\u003ch3\u003eCompatibility and included items\u003c\/h3\u003e\u003cp\u003eUse only with the corresponding NO2\/NO3 Nitrite \/ Nitrate Test Professional kit and its original measuring equipment and instructions. Use the model-specific evaluation chart only where supplied for that kit. Professional-model reagents are not a substitute for the basic-model refill. No additional measuring apparatus or complete test kit is included. Retain the equipment from your existing compatible kit.\u003c\/p\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eFollow the instructions supplied with the actual refill and compatible kit, including sample volumes, reagent order, mixing and waiting times. Read results under the recommended lighting. Where the test includes a standard solution, use it as instructed to check reagent performance. Avoid contaminating bottles or mixing caps. Store tightly closed in a cool, dark place and observe the shelf-life information on the actual packaging.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eFor aquarium water analysis only. Keep out of reach of children. Follow the hazard labels and current safety information on the actual packaging; avoid contact with eyes and skin.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/no2-no3-test-professional\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Nachfüllpackung","offer_id":63830208119114,"sku":"AP-TM-300028788","price":23.8,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-no2-no3-test-professional-refill-transparent.png?v=1791319178"},{"product_id":"tropic-marin-k-test-professional-refill","title":"Tropic Marin Potassium Test Professional Refill","description":"\u003ch2\u003eTropic Marin Potassium Test Professional Refill\u003c\/h2\u003e\u003cp\u003eReagent refill for the Tropic Marin Potassium Test Professional, manufacturer article 28792. It replenishes the reagents for measuring potassium in marine water. This item is a refill pack, not a complete test kit.\u003c\/p\u003e\u003ch3\u003eCompatibility and included items\u003c\/h3\u003e\u003cp\u003eUse only with the corresponding Potassium Test Professional kit and its original measuring equipment and instructions. Use the model-specific evaluation chart only where supplied for that kit. Professional-model reagents are not a substitute for the basic-model refill. No additional measuring apparatus or complete test kit is included. Retain the equipment from your existing compatible kit.\u003c\/p\u003e\u003ch3\u003eUse and care\u003c\/h3\u003e\u003cp\u003eFollow the instructions supplied with the actual refill and compatible kit, including sample volumes, reagent order, mixing and waiting times. Read results under the recommended lighting. Where the test includes a standard solution, use it as instructed to check reagent performance. Avoid contaminating bottles or mixing caps. Store tightly closed in a cool, dark place and observe the shelf-life information on the actual packaging.\u003c\/p\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cp\u003eFor aquarium water analysis only. Keep out of reach of children. Follow the hazard labels and current safety information on the actual packaging; avoid contact with eyes and skin.\u003c\/p\u003e\u003ch3\u003eManufacturer\u003c\/h3\u003e\u003cp\u003eDr. Biener GmbH, Steinäckerweg 3–5, 36367 Wartenberg, Germany. info@biener-aquaristik.de.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/www.tropic-marin-smartinfo.com\/k-test-professional\"\u003eOfficial product information\u003c\/a\u003e\u003c\/p\u003e\u003ch3\u003eDelivery\u003c\/h3\u003e\u003cp\u003eSupplier delivery within Germany only, estimated 2–3 business days. No pickup. Orders with corals ship in a separate parcel with their own shipping charges; the coral delivery date does not apply to this item.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"1 Nachfüllpackung","offer_id":63830208184650,"sku":"AP-TM-300028792","price":35.7,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/tropic-marin-k-test-professional-refill-transparent.png?v=1791319179"},{"product_id":"salifert-jod-iodine-profi-test","title":"Salifert Iodine Profi-Test","description":"\u003cp\u003eThe Salifert Iodine test checks iodine compounds in saltwater. Separate test steps distinguish iodide from iodate. This helps you assess iodine supplementation: a low iodide reading alone does not describe the whole iodine content.\u003c\/p\u003e\u003ch2\u003eUsing and interpreting the test\u003c\/h2\u003e\u003cp\u003eFollow the enclosed instructions for each test step and record which iodine form you measured. Compare results obtained with the same method. Repeat an unexpected reading with a fresh sample before changing supplementation. This measures iodine compounds; it does not establish that colour changes or poor growth are caused by iodine deficiency.\u003c\/p\u003e\u003cp\u003eUse the enclosed instructions for your test version. Reagents are for water testing only; do not return the tested sample to the aquarium, and keep the kit out of children's reach.\u003c\/p\u003e\u003ch2\u003eManufacturer and contact\u003c\/h2\u003e\u003cp\u003eSalifert Europe bv\u003cbr\u003eRatio 35, 6921 RW Duiven, The Netherlands\u003cbr\u003eEmail: info@salifert.com\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63905439383882,"sku":"AP-MK-1001","price":24.55,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/ap-mk-1001-manufacturer.png?v=1791917996"},{"product_id":"salifert-nitrit-no2-profi-test","title":"Salifert Nitrite NO2 Profi-Test","description":"\u003cp\u003eThe Salifert Nitrite test measures nitrite (NO2) in a saltwater aquarium. Nitrite is an intermediate in the biological conversion of ammonia and ammonium to nitrate. The test helps you monitor this stage during cycling or after changes to biological filtration.\u003c\/p\u003e\u003ch2\u003eUsing and interpreting the test\u003c\/h2\u003e\u003cp\u003eCompare the developed colour with the chart after the waiting time specified in your instructions. Record the date and reading. A single low nitrite result is not enough to declare a new tank ready for livestock: also check ammonia\/ammonium and follow the trend. NO2 and NO3 are different measurements; this kit does not replace a nitrate test.\u003c\/p\u003e\u003cp\u003eUse the enclosed instructions for your test version. Reagents are for water testing only; do not return the tested sample to the aquarium, and keep the kit out of children's reach.\u003c\/p\u003e\u003ch2\u003eManufacturer and contact\u003c\/h2\u003e\u003cp\u003eSalifert Europe bv\u003cbr\u003eRatio 35, 6921 RW Duiven, The Netherlands\u003cbr\u003eEmail: info@salifert.com\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63905439580490,"sku":"AP-MK-1003","price":9.94,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/ap-mk-1003-manufacturer.png?v=1791917999"},{"product_id":"salifert-ph-profi-test","title":"Salifert pH Profi-Test","description":"\u003cp\u003eThe Salifert pH test measures saltwater pH using a colour comparison. Its measurement range is pH 7.4–8.6. It is useful for routine checks and for observing changes throughout the day.\u003c\/p\u003e\u003ch2\u003eUsing and interpreting the test\u003c\/h2\u003e\u003cp\u003eRead the colour under neutral lighting rather than blue aquarium lights. Test at a similar time each day when tracking a trend; compare a sample before the lights come on with one near the end of the lighting period to observe daily variation. pH and alkalinity are different parameters. Confirm an unusual reading and check gas exchange and alkalinity before adding a buffer.\u003c\/p\u003e\u003cp\u003eUse the enclosed instructions for your test version. Reagents are for water testing only; do not return the tested sample to the aquarium, and keep the kit out of children's reach.\u003c\/p\u003e\u003ch2\u003eManufacturer and contact\u003c\/h2\u003e\u003cp\u003eSalifert Europe bv\u003cbr\u003eRatio 35, 6921 RW Duiven, The Netherlands\u003cbr\u003eEmail: info@salifert.com\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63905439678794,"sku":"AP-MK-1006","price":9.41,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/ap-mk-1006-manufacturer.png?v=1791918002"},{"product_id":"salifert-ammoniak-ammonium-nh3-nh4-profi-test","title":"Salifert Ammonia\/Ammonium NH3\/NH4 Profi-Test","description":"\u003cp\u003eThe Salifert Ammonia test measures the combined ammonia (NH3) and ammonium (NH4) in your water sample. It helps you monitor the first stage of the nitrogen cycle during cycling or after a disruption to biological filtration.\u003c\/p\u003e\u003ch2\u003eUsing and interpreting the test\u003c\/h2\u003e\u003cp\u003eRead the result after the specified reaction time. This total reading is not a separate measurement of free NH3. If a result is unusual, test a fresh sample and check filtration and possible inputs such as uneaten food. Follow the trend together with nitrite rather than deciding when to add livestock from a single measurement.\u003c\/p\u003e\u003cp\u003eUse the enclosed instructions for your test version. Reagents are for water testing only; do not return the tested sample to the aquarium, and keep the kit out of children's reach.\u003c\/p\u003e\u003ch2\u003eManufacturer and contact\u003c\/h2\u003e\u003cp\u003eSalifert Europe bv\u003cbr\u003eRatio 35, 6921 RW Duiven, The Netherlands\u003cbr\u003eEmail: info@salifert.com\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63905439809866,"sku":"AP-MK-1008","price":11.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/ap-mk-1008-manufacturer.png?v=1791918004"},{"product_id":"salifert-kupfer-cu-profi-test","title":"Salifert Copper Cu Profi-Test","description":"\u003cp\u003eThe Salifert Copper test checks copper (Cu) in aquarium water. Its stated measurement range is 0.05–2.0 mg\/L. It can be used to monitor copper levels, for example in a separate treatment tank.\u003c\/p\u003e\u003ch2\u003eUsing and interpreting the test\u003c\/h2\u003e\u003cp\u003eIf you use a copper treatment, check its instructions first: treatments can contain different copper compounds, and the test must be suitable for the formulation. An undetectable result is not a general guarantee that water is safe for corals or other invertebrates. This kit is not a sensitive trace analysis below its measurement range.\u003c\/p\u003e\u003cp\u003eUse the enclosed instructions for your test version. Reagents are for water testing only; do not return the tested sample to the aquarium, and keep the kit out of children's reach.\u003c\/p\u003e\u003ch2\u003eManufacturer and contact\u003c\/h2\u003e\u003cp\u003eSalifert Europe bv\u003cbr\u003eRatio 35, 6921 RW Duiven, The Netherlands\u003cbr\u003eEmail: info@salifert.com\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63905439940938,"sku":"AP-MK-1010","price":14.23,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/ap-mk-1010-manufacturer.png?v=1791918007"},{"product_id":"salifert-sauerstoff-o2-profi-test","title":"Salifert Oxygen O2 Profi-Test","description":"\u003cp\u003eThe Salifert Oxygen test measures dissolved oxygen (O2) in aquarium water. The scale runs from 2 to 14 mg\/L. You can use it to follow readings at different times of day or after changes to aeration and surface movement.\u003c\/p\u003e\u003ch2\u003eUsing and interpreting the test\u003c\/h2\u003e\u003cp\u003eTake the sample without unnecessary shaking or pouring and begin testing immediately after collection; exposure to air can change the sample. Follow the reaction times in your instructions. A single reading describes only the sampling moment. Record the time and water temperature so later measurements can be compared meaningfully.\u003c\/p\u003e\u003cp\u003eUse the enclosed instructions for your test version. Reagents are for water testing only; do not return the tested sample to the aquarium, and keep the kit out of children's reach.\u003c\/p\u003e\u003ch2\u003eManufacturer and contact\u003c\/h2\u003e\u003cp\u003eSalifert Europe bv\u003cbr\u003eRatio 35, 6921 RW Duiven, The Netherlands\u003cbr\u003eEmail: info@salifert.com\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63905440039242,"sku":"AP-MK-1013","price":12.5,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/ap-mk-1013-manufacturer.png?v=1791918007"},{"product_id":"salifert-silikat-sio2-profi-test","title":"Salifert Silicate SiO2 Profi-Test","description":"\u003cp\u003eThe Salifert Silicate test checks silicate in aquarium water and source water. Readings are expressed as SiO2; the manufacturer states a range of 0.03–30 mg\/L. It is useful when investigating silicate entering through top-up or water-change water.\u003c\/p\u003e\u003ch2\u003eUsing and interpreting the test\u003c\/h2\u003e\u003cp\u003eTest the aquarium and source water separately and label the samples. This makes possible inputs easier to trace. When comparing with another test or laboratory report, check whether results are expressed as Si or SiO2: the numbers are not directly interchangeable. A silicate reading alone cannot identify a brown coating as diatoms.\u003c\/p\u003e\u003cp\u003eUse the enclosed instructions for your test version. Reagents are for water testing only; do not return the tested sample to the aquarium, and keep the kit out of children's reach.\u003c\/p\u003e\u003ch2\u003eManufacturer and contact\u003c\/h2\u003e\u003cp\u003eSalifert Europe bv\u003cbr\u003eRatio 35, 6921 RW Duiven, The Netherlands\u003cbr\u003eEmail: info@salifert.com\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63905440203082,"sku":"AP-MK-1014","price":13.58,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/ap-mk-1014-manufacturer.png?v=1791918011"},{"product_id":"salifert-kalium-k-profi-test","title":"Salifert Potassium K Profi-Test","description":"\u003cp\u003eThe Salifert Potassium test measures potassium (K) in a saltwater aquarium. It is useful when monitoring potassium supplementation or checking an unusual laboratory result at home. This is the saltwater test kit, not the separate freshwater potassium test.\u003c\/p\u003e\u003ch2\u003eUsing and interpreting the test\u003c\/h2\u003e\u003cp\u003eUse the result table supplied with the kit and follow its sample volume, reagent sequence and reaction times. Repeat an unexpected reading with a fresh sample. A pale coral alone is not sufficient reason to dose potassium; confirm the measurement and review the other water parameters before changing supplementation.\u003c\/p\u003e\u003cp\u003eUse the enclosed instructions for your test version. Reagents are for water testing only; do not return the tested sample to the aquarium, and keep the kit out of children's reach.\u003c\/p\u003e\u003ch2\u003eManufacturer and contact\u003c\/h2\u003e\u003cp\u003eSalifert Europe bv\u003cbr\u003eRatio 35, 6921 RW Duiven, The Netherlands\u003cbr\u003eEmail: info@salifert.com\u003c\/p\u003e","brand":"Salifert","offers":[{"title":"Default Title","offer_id":63905440334154,"sku":"AP-MK-1016","price":12.3,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/ap-mk-1016-manufacturer.png?v=1791918014"},{"product_id":"red-sea-meerwasser-refraktometer","title":"Red Sea Seawater Refractometer","description":"\u003cp\u003eThis optical refractometer measures seawater salinity. Its scale is designed for seawater with a 25 °C reference; ATC compensates for temperature effects within the intended operating range.\u003c\/p\u003e\u003ch2\u003eUse and selection\u003c\/h2\u003e\u003cp\u003eCalibrate according to the supplied instructions and check the reading with a suitable seawater reference. Place the sample on the clean prism, allow temperatures to equalise and read the salinity scale. Clean and dry the prism afterwards. ATC does not replace calibration.\u003c\/p\u003e\u003ch2\u003eManufacturer and contact\u003c\/h2\u003e\u003cp\u003eRed Sea – Germany office\u003cbr\u003ePrinzenallee 7 (Prinzenpark), 40549 Düsseldorf, Germany\u003cbr\u003eEmail: support.de@redseafish.com\u003c\/p\u003e","brand":"Red Sea","offers":[{"title":"Default Title","offer_id":63905700643146,"sku":"AP-RS-12018","price":73.99,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1070\/5453\/0890\/files\/ap-rs-12018-manufacturer.png?v=1791920111"}],"url":"https:\/\/coralprime.de\/en\/collections\/wassertests.oembed","provider":"CoralPrime","version":"1.0","type":"link"}