Coral Care Guides

Choosing a Reef Flow Pump: Output, Tank Walls and Placement

Check mounting, usable controls and water paths before choosing a reef flow pump. Practical examples help you compare models wi...

Hammer, Frogspawn or Torch: Which Euphyllia Fits Your Reef?

These popular LPS corals bring movement to a reef tank but differ in polyp shape and space requirements. A practical comparison...

Tridacna Maxima, Crocea or Derasa: Which Clam Fits Your Reef?

Compare Tridacna clams before buying: plan lighting, support, attachment and long-term space for Maxima, Crocea and Derasa.

Goniopora or Alveopora? Differences, Placement and Choosing a Coral

Both flowerpot corals bring movement to a reef tank. Learn to tell their polyps apart and choose a suitable place for the indiv...

Buying WYSIWYG Corals: Assess Photos, Size and Condition

Read WYSIWYG listings with confidence: identify the exact specimen, compare size and space requirements, and understand colours...

Trachyphyllia, Acanthophyllia and Cynarina: Placement and Care

Three popular fleshy LPS corals compared: how to choose a sheltered position, gentle flow and a steady start in a reef aquarium.

How to Feed LPS Corals: Portions, Frequency and Common Mistakes

How can you target feed LPS corals without polluting the water? A simple process covering suitable portions, observation and co...

How to Check New Corals for Pests

Inspect new corals for flatworms and other warning signs without assuming that closed polyps mean an infestation.

Keeping Alkalinity Stable in a Reef Aquarium

Learn to track alkalinity consumption, check your dosing and test results, and avoid abrupt corrections in a reef aquarium.

How to Acclimate Corals After Shipping: A Practical Guide

Your corals have arrived. This practical step-by-step guide explains how to prepare, inspect the animals, compare temperature a...

Euphyllia Torch Coral Care: Why Flow Matters

Flow is one of the first things we check when a Torch coral has problems. Learn how to recognise suitable indirect movement, ke...

Best Corals for Beginners: What Really Suits Your Reef Tank?

The right first coral should suit your aquarium, not only your taste. Learn how to assess flow, stable water values, available ...