Really any cichlids. I know I should avoid the Oscar, had one with a buddy in his tank and that thing ate everything. I have a 3 inch fancy tail Molly, two gouramis one 2.5 inch the other 3 inches, a 2.5 inch platy (he's a little beast, chinese algae eater , 2 Dalmatian mollies roughly 2.5 to 3...