what r the best tankmates for discus i have a 4 foot tank with 1 brilliant red discus, 6 harliquin tetras, 2 wild honey gouramies, female krib, 2 bristlenose, i was thinking of getting 2 angles, 2 rams, 1 male krib and 6 congo tetras and maybe a few cardinals. my male discus never lets other discus survive in my tank iv added 5 but he killed them 1 by 1 what do u think will work hes fine with other fish that look nothing like him self.