I recently added my betta into my tank with 3 platys, 2 kuhli loaches and an african dwarf frog he is completely fine except every once in a while he will come up to the frog and nip at him. usually only once or twice. other times he completely ignores the frog. the frog can definatly out swim him, doesnt even seem to mind getting nipped at... (wont even move somtimes) and the frog has places he can hide in if nessacary. im thinking i will leave the betta in there, since it doesnt seem to be cuasing a huge problem what do you guys think.