September 2026

Basic Equipment

Reef Tank Equipment Basics

Learn the essential reef tank equipment every beginner needs, plus smart upgrades that improve stability, coral health, and…

My Goni

Goniopora Corals Care

Goniopora coral care made practical. Learn placement, target parameters, and feeding steps to keep flowerpot corals thriving long…

Old Glory Koumansetta Rainfordi

Court Jester Goby (Koumansetta Rainfordi)

The Court Jester Goby (Koumansetta rainfordi), also called Rainford’s Goby, is a small, colorful sand-sifting fish that brings…

How to Catch Fish in a Reef Tank Tips

How to Catch Fish in a Reef Tank Tips

Need to remove a reef fish without wrecking your aquascape? These proven tips help you catch fish safely…

Close-up of a colorful Clown Triggerfish swimming in an aquarium.

Aggressive Marine Fish Tankmates

Aggressive marine fish can coexist if you choose the right tankmates, tank size, and stocking order. Learn which…

Cloudy Aquarium

Cloudy Reef Tank Water Guide

Cloudy reef tank water comes from a few common causes. Learn how to identify the problem, fix it…

Aquarium Lighting

Easy SPS Corals

Easy SPS Corals: Beginner-Friendly Sticks for Your Reef When most reef keepers think of SPS (Small Polyp Stony)…

Kalkwasser

Kalkwasser in Reef Tanks

Kalkwasser adds calcium and alkalinity while supporting pH. Learn how to dose it safely, avoid spikes, and decide…

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