Right now i have 5 fish in my 72 bow front tank i was thinking bout adding a Melanachromis Auratus , Pseudotropheus Demasoni , Metriaclima Callainos Cobalt Zebra , Psedotropheus Acei , Metriaclima Estherae Red Zebra , Psedotropheus Crabro Bumble Bee , and Metriaclima Greshakai Ice Blue . Right now i have a Labidochromis Yellow lab , Metriaclima Lombardoi Kenyi , Labeotropheus Trewavase , Melanachromis Cyanacorhabdos Maingano , and Pseudotropheus Socolofi . Do y'all think this would work since its a all male tank and they all going to be juveniles ? Its hard to tell the Demasoni males from the females when they juveniles and the Red Zebras . How do you tell them apart ? My LFS have the Demasoni , Red Zebras , Bumble bee , Auratus , and Acei now . Its also hard to tell the Acei females apart from the males help plz . I know most of y'all going to say take the Yellow Lab out because all the other fish are to aggressive .