I have a Red Sea 425 (75 gallon display and 112 gal system) in that I have a blue tang, sailfin tang, two clowns, and 2 fire fish. The sailfin and blue tang are both very small and I’m planning to move them to a bigger tank in a year or two when they get too big. My tank is handling all them just fine. Am I able to get more fish? If so what fish? (it’s a reef tank btw)