I have a 29 Gallon fish tank. Tropical fish community and such. Always 80 degress and I have a beta, crab, 2 blue gouramis, 2 bala charks, and 2 clown loaches that are missing (presumably dead). Would a african frog go with these type of fish? I heard the crab would eat the frog and in the beginning the frog would have bits and pieces missing from it. Is any of this true? And also if the frog gets big like 6" will it eat the beta? I heard this from petsmart and petco. Please help me.