Would a Blue Cobalt ( Maylandia callainos ) and a Powder Blue Socolofi ( Pseudotropheus Socolofi) be okay together? I was just thinking that I'm doing all males and the 2 look really similar in color so I don't want them to kill one another, since I've read that males of the same species will often beat up or kill the other. I have the Blue cobalt at home in my tank already with 3 yellow labs and 1 johanni and I was just wondering if the socolofi would be okay too. The tank is a 55g. Thanks.
