Hello all. I'm wondering if the following combination would work..... - 1 Bolivian Ram - 1 Rainbow Cichlid - 1 Keyhole Cichlid Tank would likely be my other 20g Long ... and looking to get males. If that combination wouldn't work ... any suggestions? I'm not looking for another pair to breed ... would simply like 2-4 of the least aggressive cichlids in the 20g Long if feasible. Water is too hard and PH from tap too high for anything like Cockatoos, GBR's, etc. Lastly, do males of the same species get along well enough in most cases? Like 3 Bolivians ... or 2 Keyhole males with a male Bolivian, etc.