Mylochromis ericotaenia Care Guide - Aquarium Setup, Diet & Breeding

Mylochromis ericotaenia is a moderately large Lake Malawi haplochromine cichlid with the deep-bodied form and bold colour pattern associated with many members of its genus. Mature males develop stronger blue and reddish or orange markings, while females are generally more subdued, with silvery, grey-brown and darkly marked coloration.

This species is an active, observant cichlid that spends much of its time investigating the substrate and surrounding rocks. It is not a tight shoaling fish, although young individuals may gather loosely in suitable habitat. Adults can become territorial, particularly when breeding, and males may display prominently to females and rivals.

In the wild, Mylochromis ericotaenia is associated with Lake Malawi’s clear, alkaline waters and mixed sandy-rocky zones. Its body shape and feeding behaviour reflect a lifestyle based around searching over the lake bed for small aquatic prey and other edible organisms.

Like other Lake Malawi mouthbrooders, it has a fascinating reproductive strategy in which the female protects the developing eggs and fry inside her mouth. It is a striking species for a spacious Malawi cichlid aquarium, but its adult size and territorial behaviour make it better suited to experienced keepers than to a small community setup.

Mylochromis ericotaenia is endemic to Lake Malawi in East Africa. It occurs in the lake’s sandy and rocky environments, where it forages across the bottom and among shoreline habitats.

A single adult or carefully planned breeding group should have at least 300 litres, with a footprint of about 150 × 45 cm or larger; a larger aquarium is strongly preferable for several adults. Use fine sand or smooth-grained substrate so the fish can forage naturally, and provide robust rockwork with caves and visual barriers around the sides and rear. Leave open swimming and feeding space through the centre of the aquarium. Strong filtration, high oxygenation and stable, alkaline water are important, while sharp rocks and fragile plants are best avoided.

Up to about 20 cm (7.9 in) in adult length. Males generally grow larger and develop a fuller body and stronger fins than females, which are usually slightly smaller.

Offer a varied, protein-rich but balanced diet based on quality cichlid pellets and granules, supplemented with frozen or live foods such as mysis shrimp, brine shrimp, krill and suitable insect larvae. Several modest meals are preferable to one very large feeding. Avoid mammalian meat and excessive fatty foods, which can cause digestive problems in cichlids. Young fish benefit from finely sized foods, while adults can manage larger pellets and pieces of seafood.

Suitable companions include similarly sized Lake Malawi haps, peaceful peacock cichlids and other robust open-water Malawi cichlids with comparable water requirements. Avoid tiny fish, slow-moving community species and highly delicate tankmates, as they may be intimidated, injured or eaten. It is also best not to combine this species with excessively aggressive mbuna or closely related males with similar appearance. A single male with several females is generally preferable to keeping multiple males in a modest aquarium.

Mylochromis ericotaenia is a maternal mouthbrooder. Spawning usually takes place over a sandy or rocky area, with the female collecting the fertilised eggs in her mouth and incubating them for around three weeks. A breeding group is best kept as one male with several females to spread courtship pressure. The female should be moved only if necessary, as handling can cause her to swallow or release the brood prematurely. Once released, the fry can be raised on finely crushed quality food and newly hatched brine shrimp.

Males are typically larger and more vividly coloured, often developing stronger blue, red or orange patterning and more extended dorsal, anal and ventral fins. Females remain comparatively drab and silvery or brownish, with less pronounced fin extensions.