I have a 75 gallon tank with 1 cobalt blue zebra, a group of 4 rusties, a group of 4 maingano, a group of 4 auratus, 1 being an albino, 1 ob zebra, 1 mystery fish. He was white then started to get yellow with black vertical bars. Then I have 1 male and 1 female yellow tail acei and a synodontis valentina which I believe to be a hybrid. I'd like to get 2 or 3 more female yellow tails for the male then I would like to get one more group of something with a lot of different colors. That would put the total at 24 or 25 fish. Im using a fluval fx4 canister filter and wave maker. Would I need additional filtration for 25 fish in my 75?