The Electric Yellow Lab is one of the most popular and widely kept African Cichlids from Lake Malawi. Classified as an Mbuna (rock-dwelling cichlid), they are famous for their vibrant yellow coloration and striking black dorsal stripes. While considered one of the most 'peaceful' Mbuna, they are still highly territorial cichlids that require hard, alkaline water, a sandy substrate for digging, and abundant rockwork to establish territories.
At a Glance
Tank Requirements
Water Parameters
Temperament & Compatibility
Available Varieties
Each variety inherits the species defaults above. Only differences are highlighted.
Unsexed / Juvenile
Typically sold as unsexed juveniles (since males and females look nearly identical when young). As they mature, a heavily rocked tank is required to disperse developing aggression and establish territories.
Same care requirements as the base species
Also known as: Standard, Juvenile
Male
Males often develop slightly deeper yellow colors, darker/thicker black fin bands, and are highly territorial. In a mixed-sex tank, they must be kept in a harem ratio (1 male to 3+ females) to prevent them from harassing females to death.
Differs in 2 traits from base species
Also known as: Dominant Male, Breeder Male
Female
Females look very similar to males but are generally slightly smaller with occasionally lighter black markings. They are less aggressive than males and serve to disperse male aggression in a harem setup.
Differs in 2 traits from base species
Also known as: Female Mbuna
Yellow Lab (Mbuna) Care Summary
The Yellow Lab (Mbuna), scientifically known as Labidochromis caeruleus, belongs to the Cichlids - African family group. Adults reach a maximum size of approximately 10 cm and have a fusiform body shape with a moderate growth rate. Classified as semi-aggressive, this species primarily occupies the mid-level and bottom zones of the aquarium and produces a high level of biological waste.
To thrive, the Yellow Lab (Mbuna) requires a freshwater only aquarium with a minimum volume of 150 litres and a tank length of at least 90 cm. Water temperature should be maintained between 24°C and 28°C, with a pH range of 7.5–8.8 and a general hardness of 10–25 dGH. A moderate water flow is preferred. To replicate their natural habitat, the tank should include sand (sifters) and smooth gravel (sensitive barbels).
Yellow Lab (Mbuna) can be kept singly or in a group, making them flexible additions to most setups. Keepers should be aware that this species can be aggressive toward its own kind, will defend a territory within the tank, and may uproot or eat live plants. This species is available in 3 varieties: Unsexed / Juvenile, Male, and Female. Each may differ slightly in size, temperament, or care needs, so it is worth checking the specific requirements of the variety you plan to keep.
Similar Species
Demasoni Cichlid (Mbuna)
Chindongo demasoni
A stunning but notoriously aggressive dwarf Mbuna from Lake Malawi. Known for its intense dark blue and black vertical stripes. They are strict herbivores (Aufwuchs grazers) and prone to 'Malawi Bloat' if fed high-protein diets. Due to extreme aggression toward their own kind, they require specific stocking densities.
African Jewel Cichlid
Hemichromis bimaculatus
A strikingly beautiful but notoriously aggressive West African riverine cichlid. Unlike the alkaline-loving Rift Lake cichlids (e.g., Mbuna), Jewel Cichlids prefer neutral, softer water parameters. They are renowned for their brilliant red breeding dress and iridescent blue spots, but also for their extreme territoriality, especially when forming pairs and spawning. They are avid diggers and will uproot most plants.
Blue Dolphin (Hap)
Cyrtocara moorii
A striking blue Lake Malawi Haplochromine cichlid famous for the pronounced nuchal hump (head bump) that develops in mature adults, resembling a dolphin. They are benthopelagic micro-predators that naturally follow digging fish in the wild to catch stirred-up morsels. While relatively peaceful for an African Cichlid, they grow very large and require extensive swimming space and hard, alkaline water.
Kribensis
Pelvicachromis pulcher
A vibrant and highly popular dwarf cichlid native to the slow-moving rivers of West Africa. Unlike Rift Lake African cichlids, they prefer soft, slightly acidic water and densely planted tanks. They are generally peaceful in a community tank but become fiercely territorial and aggressive when breeding, often digging pits in the substrate and claiming the bottom zone. They are cave spawners and require hiding spots like driftwood or coconut shells.
Convict Cichlid
Amatitlania nigrofasciata
One of the most ubiquitous and hardy cichlids in the hobby. Named for their black-and-white prison stripe pattern, Convicts are infamous for their intense aggression, especially when breeding (which they do readily). They are intelligent, wet pets that rearrange their tank décor constantly. Best kept in species-only tanks or with other robust Central American cichlids.
Texas Cichlid
Herichthys cyanoguttatus
The Texas Cichlid is the only cichlid species native to the United States. Known for their striking pearlescent blue/green spots and extreme territorial behavior, they require large tanks and robust filtration. They are notorious for rearranging aquariums, digging massive pits, and destroying live plants.