The Reef Journal
Care guides, species spotlights, and expert tips for reef aquarium enthusiasts.
Latest Posts
Caring for Your First SPS Coral
Small Polyp Stony corals are some of the most rewarding reef inhabitants — but they demand precision. Here's what every beginner should know before adding SPS to their tank.
The Beauty of Hammer Corals: A Complete Guide
Hammer corals are among the most sought-after LPS species in the hobby. Learn how to keep them thriving, what to watch out for, and how to choose a healthy specimen.
Setting Up the Perfect Reef Tank
From choosing the right equipment to cycling your system, this step-by-step guide covers everything you need to set up a thriving reef aquarium from scratch.
Understanding Alkalinity in Reef Aquariums
Alkalinity is one of the most critical parameters in a reef tank — and one of the most misunderstood. This in-depth guide explains what it is, why it matters, and how to keep it stable.
Top 5 Beginner-Friendly Corals
New to reef keeping? These five hardy, forgiving corals are perfect starting points — beautiful, resilient, and available in many color morphs to suit any aesthetic.
Coral Fragging: Tips and Techniques
Fragging your own corals is one of the most rewarding parts of the hobby. Learn the tools, techniques, and best practices to successfully propagate your collection.
LED vs T5: Lighting for Coral Growth
The LED vs T5 debate has fueled reef forums for years. We break down the real differences in spectrum, PAR output, heat, and cost to help you make the right choice.
Water Flow Patterns for Healthy Corals
Flow is the invisible force that keeps your coral healthy — delivering nutrients, removing waste, and mimicking the natural reef environment. Here's how to get it right.