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Fish

five reef fish occupying separate zones in a 40-gallon reef aquarium showing correct stocking

How many fish can you put in a reef tank? A practical guide by tank size

The inch-per-gallon rule fails reef tanks. Learn the four real factors that determine fish capacity,…

pair of clownfish and chromis school in a mature mixed reef community tank

Reef tank fish: what reef-safe really means, stocking order, and building a healthy roster

Learn what reef-safe actually means (and its asterisks), how to stock your reef in the…