Sometimes I feel poeple should research just a little before asking a question I quess by your name that you are/were into Betta's so if I were to say that I hear you can keep a happy Betta in a beer glass you might have something to say!
Hey, come join us 'cichlidies' it's a good excuse to upgrade
I've got four Neo Multifasciatus in a 12 gallon tank. The only concern about a ten gallon with shell dwellers is they'll be better off in a short long tank with a lot of foot space rather than a tall tank.