Hap Nyererei Care Guide - Aquarium Setup, Diet & Breeding

Hap Nyererei is a vividly coloured Victorian cichlid admired for the intense blue, red, orange and yellow patterning displayed by mature males. Colour varies considerably between geographic forms, and individual populations can look strikingly different while still belonging to the same species.

Males are territorial and use colour and display behaviour to defend a breeding area, especially around rocks and other structure. Females are generally less brightly marked and spend much of their time avoiding persistent male attention or moving through the habitat in small social groups.

In the wild, this species is associated with the rocky margins and shallow offshore areas of Lake Victoria. Its laterally compressed body and comparatively pointed head are well suited to manoeuvring around rocks while searching for small invertebrates and other edible material.

The name Hap Nyererei is commonly used in the aquarium trade, although Pundamilia nyererei is more accurately regarded as a Lake Victoria haplochromine cichlid rather than a close equivalent of the larger predatory haps from Lakes Malawi and Tanganyika. Local colour variants are particularly important, as mixing related populations can result in unwanted hybridisation.

Hap Nyererei, Pundamilia nyererei, is native to Lake Victoria in East Africa. It occurs around rocky shores and island habitats, with recognised colour forms associated with different locations in the lake basin, including the Mwanza Gulf region.

A group should be housed in an aquarium of at least 300 litres, with a footprint around 120 x 45 cm or larger; a longer tank is preferable because males establish territories. Use open swimming space alongside piles of smooth rocks, caves and visual barriers, with a fine sand or rounded-gravel substrate that allows natural foraging. Strong filtration, good oxygenation and stable, mineral-rich alkaline water are important, while decor should be arranged securely to prevent territorial disputes from becoming continuous line-of-sight conflicts.

Males reach about 10 cm (4 in); females are usually smaller at around 6–8 cm (2.4–3.1 in).

Offer a varied omnivorous diet based on quality cichlid pellets or granules, supplemented with spirulina or other algae-based foods and occasional frozen or live offerings such as brine shrimp, daphnia and finely chopped mysis. Feed modest portions once or twice daily rather than relying heavily on fatty meaty foods, which are not appropriate as the main part of the diet.

Suitable companions include robust Lake Victoria cichlids of similar size and temperament, particularly carefully selected Pundamilia or other Victorian haplochromines. Tankmates should be able to tolerate hard, alkaline water and should not be timid or easily bullied. Avoid peaceful community fish, small tetras, delicate bottom dwellers and highly aggressive Malawi mbuna. Do not mix different colour forms or closely related Pundamilia species if maintaining pure strains is important, as hybridisation is possible.

Hap Nyererei are maternal mouthbrooders. Keep one mature male with several females and provide open areas of sand or rock where the male can display. After spawning, the female carries the fertilised eggs and developing fry in her mouth for around three weeks, during which time she may hide and stop feeding. Experienced keepers may move the brooding female to a separate aquarium shortly before she releases the fry, then offer the young newly hatched brine shrimp and other suitably fine foods.

Mature males are larger and far more colourful, commonly showing vivid blue facial or body markings with red, orange or yellow areas and elongated fins. Females are smaller and usually silver, grey-brown or subdued tan, with less pronounced fin extensions.