I have a 30 gallon aio tank and currently for fish I have a pair of clowns, rocket tail damselfish, fire fish, Bangai cardinal, and a yellow watchman. For now I’m going to hold off on adding anything for a while but eventually I’m hoping to add one MAYBE 2 more fish. Would I be okay in adding 1 or 2 more or is it safe to call it on adding fish.