Blue Peacock Care Guide - Aquarium Setup, Diet & Breeding

The Blue Peacock is a striking Lake Malawi cichlid known for its electric blue facial markings, vivid blue body colour and warm yellow, orange or red tones that may appear through the flanks and fins. Colour varies considerably between collection locations, and not every fish sold as a Blue Peacock has exactly the same pattern.

Mature males are the showier sex, developing intense metallic colour and elongated fin tips as they establish a territory. Females and young fish are usually silver, beige or brownish, with subdued vertical barring that helps them blend into the lakebed.

In the wild, these cichlids live around the transition between rock and sand. They use their finely tuned sensory pores to locate small invertebrates hidden in the substrate, then hover and sift through the sand to uncover prey.

Blue Peacocks are generally less boisterous than many mbuna, but males can be territorial around spawning sites. Their combination of peaceful behaviour, specialised feeding habits and brilliant adult colour has made them some of the most popular non-mbuna Malawi cichlids in the hobby.

Blue Peacocks are native to Lake Malawi in East Africa, where Aulonocara stuartgranti occurs along rocky and sandy shorelines. Different populations show distinct colour forms depending on their location around the lake, and aquarium strains are often sold under locality-based names.

A harem of Blue Peacocks should have at least 250 litres, with a larger aquarium preferable for multiple males or a mixed Malawi community. A tank measuring about 120 cm long by 45 cm deep provides useful swimming space and territory boundaries. Use fine sand or another smooth substrate so the fish can sift naturally, along with firmly arranged limestone or other inert rockwork creating caves, sight breaks and spawning surfaces. Leave open sandy areas at the front, and secure all rocks directly on the tank base before adding the substrate.

Males can reach about 15 cm (6 in) in length, while females are usually smaller at around 10–12 cm (4–4.7 in).

Feed Blue Peacocks a varied diet based on a quality cichlid pellet or granule, supplemented with flakes and small frozen foods such as brine shrimp, mysis and finely chopped seafood. Their natural diet includes small crustaceans and other invertebrates sifted from sandy sediment. Offer modest portions several times a day rather than relying on one large meal, and avoid making mammalian meat or excessively fatty foods part of the diet.

Blue Peacocks are best kept with similarly sized, relatively peaceful Lake Malawi haps and other peacock cichlids, provided there is ample space and the fish have compatible temperaments. Avoid highly aggressive mbuna, delicate community fish, and other Aulonocara species or closely related colour forms if maintaining pure strains matters, as hybridisation can occur. Keeping one male with several females helps distribute territorial attention and reduces pressure on individual females.

Blue Peacocks are maternal mouthbrooders and are best bred as a harem of one male with several females. The male displays over a flat rock or open patch of sand, while the female picks up the eggs and fertilises them in her mouth. She normally incubates the brood for around three weeks, during which time she may hide and eat little. Once released, the fry can be raised on newly hatched brine shrimp and finely crushed foods; provide cover so they are not eaten by tankmates.

Adult males are substantially more colourful, often showing vivid blue on the head and body with yellow, orange or red highlights and pointed fin extensions. Females remain comparatively drab and silvery or brownish, commonly retaining darker vertical bars; males may also be slightly larger and more robust.