Blue streak hap

The electric yellow lab, also known as the blue streak hap, is a dazzling Malawi cichlid from the rocky habitats of Lake Malawi, East Africa. While the blue-and-white morph is more widespread in the wild, the brilliant 'electric yellow' form — found naturally only between Charo and Lion's Cove — has become one of the most popular Mbuna in the aquarium trade. Males typically exhibit the deepest yellow, with jet-black dorsal and ventral fins edged in electric blue, while females are generally paler but still vividly coloured. Their bold, outgoing personality matches their bright appearance.

Unlike many Mbuna, electric yellows are comparatively mild-mannered — though 'mild' by Malawi standards still means semi-aggressive. They do best in a species group with one male and at least three females, which spreads male attention and reduces harassment. Suitable tankmates include other moderately peaceful Malawi cichlids of similar size, but avoid overly aggressive Mbuna or very meek species that would be bullied. They are omnivorous, feeding primarily on insect larvae and small crustaceans in the wild, with some plant matter. A quality cichlid pellet or flake as a staple, supplemented with frozen brine shrimp, mysis, and spirulina, provides balanced nutrition.

A minimum tank of 160 litres (about 35 US gallons) is recommended for a small group, decorated with rock piles that form caves and crevices alongside open swimming areas. The water must be hard and alkaline — pH 7.7 to 8.6, temperature 24 to 28°C, with a hardness of 10 to 25°H. Labidochromis caeruleus is a maternal mouthbrooder: the female incubates fertilised eggs in her buccal cavity for about three weeks before releasing fully independent fry. With stable water quality and a varied diet, these hardy cichlids typically live five to eight years, though ten-year individuals are not uncommon in excellent conditions.