Extreme Corals News and Updates

Learn how coral coloration works and how to improve coral color in your reef tank with better lighting, water quality, nutrients, feeding, and stability.

Learn how water flow impacts coral health, feeding, waste removal, and growth in reef tanks, with practical tips for SPS, LPS, soft corals, and mixed reefs.

Learn what a calcium reactor is, how it works, the best calcium reactor types for reef tanks, and how it helps maintain calcium, alkalinity, and coral growth.

Learn how aquarium cleaning magnets can leak heavy metals into a reef tank, the warning signs of a failing magnet, and safer ways to clean your aquarium without risking coral health.

Building a successful reef tank requires more than just saltwater and corals. This guide outlines the must-have tools and accessories—from lighting to test kits—to ensure a thriving, healthy reef environment for all experience levels.

Lighting is one of the most critical factors in coral health and growth. This beginner’s guide explains how different light spectrums and intensities work with coral biology, what lighting systems are best for reef tanks, and how to tailor lighting to your coral mix for optimal results.

Starting a coral reef tank is a rewarding way to bring the ocean's beauty into your home, but success begins with the right knowledge and preparation. This step-by-step guide walks you through choosing the right tank size, equipment, livestock, and maintenance strategies to create a healthy, vibrant reef environment. Perfect for beginners, it covers everything from budgeting and cycling to water quality and continuous learning—so you can dive confidently into the world of reef keeping.

Choosing the right coral for your reef tank can be overwhelming. This guide breaks down the best corals for different setups—whether you have a nano tank, mixed reef, or SPS/LPS-dominant system. Find the perfect coral and start building your dream reef today.