What are good fish for a 30 gallon reef tank?
There are numerous fish for this marine tank. They range from clown fish to different angel fish. Try looking at places where they sell fish, breeders & owners. Look at: www.youtube.com/watch?v=rrgznlGf-OM
Smaller fish are fine. 1 inch of fish for every 5 gallons of water will keep your tank chemical levels safe.