Extreme Corals News and Updates

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 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.

Some of the most serious threats to coral health aren’t obvious—they’re hidden predators. This guide explores the top coral-eating pests in reef tanks, how to identify them, and proven methods to remove or prevent these invisible invaders.

The health and vibrancy of your corals depend on more than water quality and lighting. This blog dives into the fascinating world of coral microbiomes—the bacteria, algae, and microorganisms that form the foundation of coral immunity, growth, and coloration. Learn how to support this delicate balance and avoid disruptions that can lead to coral stress or disease.

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.

Learn how to spot, remove, and prevent common coral predators in reef tanks, including flatworms, nudibranchs, sundial snails, Aiptasia, and hitchhiking pests.