Discover everything you need to know about marine ich (Cryptocaryon irritans) in this comprehensive guide. Learn how to diagnose, treat, and prevent this common saltwater fish disease with step-by-step instructions, emergency treatments, and proven prevention strategies. Ideal for both new and experienced
Copper is one of the most effective treatments for marine ich and velvet — but also one of the most dangerous if misused. This guide covers safe dosing, chelated vs ionic copper, and what to never do in a reef tank.