The base body colouration is greyish lavender, shading to yellow on the belly, just to the rear of the base of the pectoral fin, along the junction of preoperculum and operculum, and around lower margin of orbit.

There is a scaleless, dark spot on the operculum and there are normally five or six darkish vertical bars along flanks .

Each flank scales has dark pigment distributed uniformly around exposed rare edde and these intersect to create a pattern reminiscent of chain mail.

Small, whitish spots form lines along the membranes between the rays of the dorsal, anal and caudal fins.

[4] Lamprolgus congoensis is a benthopelagic species which is found in areas of rapids[6] It appears to feed on invertebrates and a gut examined contains the remains of insects and spider,[3] They males are territorial and usually have a number of females within the territory he guards, the female lays 80 or so eggs in a sheltered spot such as a cave, laying the eggs onto the ceiling of the cave.