well who cares what everyone else says. im sure u know they get big bc ur avtar shows a monster. so u know u will get a bigger tank. so u know u will haft to sell it or get a bigger tank so thats why im not gonna tell u get a great white or something bc ur just a monster fish keeper who wants monster fish. its just people on here wanna make sure u have the right setup for it and u know what to expect. so no hard feelings its just mfk members like to to tell u how it is... anyway bro u can keep them with anything as long as the fis cant fit in its mouth. good luck to u and cant wait to hear some more updates. oh and welcome to monster fish keepers bc by the way it sounds u love monster fish so u will love it here.