This species of Labidochromis tends to be much more aggressive and active then Labidochromis caeruleus (yellow labs), and have been described as similar in temperament to M. estherae (Red Zebra's). This being said, Lab. sp. "Mbamba" are usually less aggressive then most mbuna, and tend to reserve that aggression to their own kind. However, the aggression usually only extends to chasing the intruder away from the dominant male's territory, as opposed to constant harassment.
Males tend to start colouring up at two months, and exert dominance early on. The males of this species show black vertical bars overlapping a bluish background on the body. The dorsal, anal, and pelvic fins are black, with the dorsal and anal fins completed with a yellow stripe on the outer edge. The anal and pelvic fins may be finished with a whitish stripe, and the bluish body usually melts into a yellow tail. This produces a spectacular display when breeding or exerting dominance.