I have a 55 gallon tank and planing on a much bigger one soon..I have several questions since im new to this..In my 55 gallon tank i have 1 inch and a half oscar and 2 -3 inch pictus catfish and a odd ball little tiny fish they have all been together about 4 months and all get along great ..one of the questions i have is ive got a 4 inch and about a inch wide african clawed frog can he be put in the tank with these fish? also i have a snail that is huge dont know what kind if the snail can he go in the tank with out getting ate? the snail is in with a betta right now and get along ..If the frog cant go in the big tank can he and a betta go together the betta has long fins..Or can the betta go in the big tank with the oscar and catfish and oddball little fish? I hope i was able to make this clear...the betta is about 2 inches long..as you can see i need help..thanks ,ara