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.
I have three african clawed frogs in my tank with two large goldfish and one apple snail. The frogs are fun to watch and have never attempted to eat my fish. However, the fish are big so maybe they are intimidating to these frogs.
Well I have one tank that is 2Og high with 3 dumpy tree frogs and some live plants. The water is a bowl in the corner (the office water cooler as I like to call it) When they are awake that is where they most like to hang out. I should but a bubble wand in it to make it look like a jacuzzi. Just a thought