My bf has a 10 gal tank and we were at the LFS the other day. He saw some really pretty little blue fish that he'd love to put in his tank. Thing is, we forgot what they were called. We started researching electric blue tropical fish but what came up was Cichlid and Hup, both of which seem to need a huge tank. Do any of you know of a small blue fish that will be happy in a 10 gal? (Besides a betta) Thanks!