Coral Care Guides

Chalice Coral Care: Finding the Right Spot in Your Reef

Light, flow, feeding and room to grow: a practical guide to placing your chalice coral and spotting trouble along its tissue edge.

Leaving Your Reef Aquarium for a Holiday: A Practical Care Plan

Prepare top-off water, food portions, dosing checks and an emergency contact before leaving your reef aquarium. A practical pla...

Coral Spacing: Prevent Stings in Your Reef Tank

Place torch, chalice and other LPS safely: allow room for expanded tissue, check after dark and know what to do when neighbouri...

A Hole in Your Tridacna Clam: Normal Opening or Injury?

Not every slit is an injury. Learn where a Tridacna has normal openings, which changes deserve attention and how to document a ...

Power Outage in a Reef Aquarium: What to Do First

Which equipment needs backup power first? What should you watch during an outage and check when power returns? A practical sequ...

Activated Carbon in a Reef Aquarium: Selection, Use and Common Mistakes

What activated carbon removes from reef aquarium water, where to place it and what to watch when using and replacing it.

Testing Nitrate in a Reef Aquarium: Comparing Results Properly

Two nitrate tests disagree? Check the method, range, nitrite and dilution before changing how you manage your reef.

Measuring Phosphate in a Reef Tank: Why Zero PO4 May Not Mean Zero

Check zero PO4 readings, compare measurement units and select suitable phosphate tests before changing your reef aquarium.

Reef aquarium water parameters: what to test first

A practical sequence for checking temperature, salinity, alkalinity and nutrients, with a testing log, suitable home tests and ...

Measuring Reef Aquarium Salinity: Density, SG and Calibration

Salinity, density or SG? Read the right scale, check calibration and investigate conflicting measurements in your reef aquarium.

ICP Analysis or Home Water Test: What Does Your Reef Need?

A quick reading at home or a broader laboratory view? Decide how to check alkalinity, nutrients and trace elements without over...

Mounting Corals: Gel, Epoxy and Stable Supports

A practical mounting guide for frags and fleshy LPS: choose a suitable support, keep tissue clear and follow the adhesive's cur...