I never replied to anyone who answered my questions, Since then I relized it is a 2 1/2 gallon. I have put a small placostamus, 2neon tetras,2 spotted cories, a spotted tetra, and some other kind of tetra with a pink line. They all get along fine together. The frog is an Africain Dwarf (maybe 1/2-3/4 inch), not the clawed Dwarf(white with claws). It's not suppose to get bigger than 2 inches, and that is streching it. I do not plan to put any more fish in the tank. But I did try a underwater crab, but they keep dieing. In fact, I was trying to find out why maybe in here today. Sorry about the "Shouting", I did not realize that was shouting. This is my first forum.