January 2026

Coral Aggression and Sweeper Tentacles

Coral Aggression and Sweeper Tentacles

Learn coral aggression and sweeper tentacles, plus spacing rules and fixes to prevent nighttime stings in mixed reef…

Aquarium Lighting

Coral Species Guide

Coral Species Guide: Choosing the Right Corals for Your Reef Tank Building a thriving reef tank starts with…

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…

Acanthurus Achilles

Achilles Tang (Acanthurus achilles)

The Acanthurus Achilles, commonly known as the Achilles Tang, is one of the most striking and challenging surgeonfish…

A fish that is swimming in some water

Butterflyfish Care in Marine Aquariums

Practical butterflyfish care for marine aquariums, including tank size, feeding steps, and quarantine tips for healthy long-term success.

Aquarium Lighting

Detritus Control in Reef Tanks

Detritus control in reef tanks lowers nutrients and prevents algae. Learn where waste hides and how to export…

Skunk Cleaner Shrimp

Saltwater Invertebrate Compatibility

Saltwater invertebrate compatibility starts with fish choices, stable parameters, and smart feeding. Use proven pairings to avoid losses.

Aquarium Guide

Saltwater Aquarium Setup Guide

Starting a saltwater aquarium is one of the most rewarding projects in the hobby. With the right plan,…