Is it okay that I have them in the same tank. The 2 girls have been checking him out not showing much aggression but they are 3 inches bigger then him. I'm a little worried they may bully him due to his size I am also unsure when he is supposed to turn blue. I'm very new to all of this.
Females are nimbochromis venustus : male is Tyrannochromis Nigriventer
Females are nimbochromis venustus : male is Tyrannochromis Nigriventer