Most of your stocklists have been asking for aggression and hybridization. Stick with no more than three species in a 55 and start with groups of about 6 each. Fish out extra males as they start getting whomped on and things will equalize. Kenyi can be pretty rough in my experience.
Personally, I think just yellow labs and johanni would make a great 55 setup. Get 8 each, rock up the tank and enjoy.
Personally, I think just yellow labs and johanni would make a great 55 setup. Get 8 each, rock up the tank and enjoy.