I have a 32 gal reef tank with 2 Clownfish(1 1/4 inch each) a BiColor Blenny (1 inch) and a Coral Beauty (2 1/4 inches). I also have 2 cleaner shrimp along with a few snails and crabs. I read 1" of fish per 5 gal, do corals take up room from fish? I have 1 power head, canister Fluval 207 filter along with the filter that comes with the tank. Would I be able to add another fish or 2 if I add another power head for more airflow? Would I need another power head?


