I recently got 3 african dwarf frogs for my 55 gallon planted tank. I got a fairly good sized african clawed frog for my 75 gallon oscar tank. Still waiting to see how this mix works out. I keep a apple snail with my breeding pair of convicts for algae control. Then in my 30 gallon saltwater tank I have anenomes, pepermint shrimps, turbo snails and a recent addition of a starfish.