I currently have three uarus, six keyholes, one anglefish, two discus, one geophagus surinamensis, nine cory cats, six rosy barbs and six zebra danios which i am currently housing in a 55 gallon. I would like to know what size tank i should upgrade to or if i do at all. I just want to make sure my fish have enough swimming room and space i do water changes regularly but i still feel like my tank might be too small for these cichlids especially if they decide to pair off. Any help is much appreciated.