Eureka Red OB Peacock Care Guide - Aquarium Setup, Diet & Breeding

Eureka Red OB Peacocks are striking ornamental peacock cichlids known for a vivid red, orange and blue colour palette combined with the irregular dark blotches of the OB, or orange-blotch, pattern. Individual markings vary considerably, making every fish slightly different. Mature males generally develop the strongest colour, while females and younger fish are more subdued.

Their elongated bodies, rounded fins and prominent eyes are typical of Aulonocara-type cichlids. Special sensory pores in the head help peacocks detect small invertebrates concealed beneath the lake bed, an adaptation that contributes to their characteristic hovering and searching behaviour.

Compared with many highly aggressive Malawi cichlids, peacocks are relatively measured and deliberate. Males display to females and defend small territories, particularly around potential spawning sites, but they are not constant open-water swimmers or true shoaling fish.

The Eureka Red OB is a captive-developed colour form rather than a naturally occurring, scientifically defined species. Because it is a hybrid line, colour, body shape and the amount of orange blotching can differ between specimens and breeders.

This is a selectively bred hybrid line derived from Lake Malawi peacock cichlids, with Aulonocara jacobfreibergi among its recognised parentage. The ancestral fish originate from rocky and sandy habitats around Lake Malawi in East Africa; the Eureka Red OB colour pattern is established through aquarium breeding rather than representing a distinct wild locality.

A group should have an aquarium of at least 200 litres, with a footprint around 120 cm long by 40 cm wide; a larger tank is preferable for more than one male or a mixed Malawi community. Use fine sand or another smooth substrate so the fish can sift and mouth it safely. Arrange limestone or other inert rockwork into caves and visual barriers while leaving broad open areas for displaying and foraging. Strong filtration, good oxygenation and stable, alkaline water are important, and plants are optional because they are not a major feature of their natural habitat.

Males can reach about 15 cm (6 in) in total length, while females usually remain smaller at around 10–12 cm (4–4.75 in). Aquarium specimens may vary depending on their hybrid lineage and conditions.

Offer a varied omnivorous diet based on quality cichlid pellets or granules, supplemented with spirulina-based foods, blanched vegetables and occasional frozen or live foods such as brine shrimp and daphnia. Small, regular meals suit their natural foraging style. Avoid fatty mammalian-based foods and do not rely heavily on bloodworms, as an excessively rich diet can cause digestive problems.

Suitable companions include similarly sized, peaceful to moderately assertive Lake Malawi peacocks and carefully selected haplochromine cichlids with comparable water requirements. Avoid mixing them with very aggressive mbuna, delicate community fish, fin-nippers or small species that may be intimidated or eaten. Do not house them with other Aulonocara or closely related peacocks if preserving a pure line matters, as males and females may hybridise readily; multiple males should also be avoided unless the aquarium is particularly spacious and structured.

Eureka Red OB Peacocks are maternal mouthbrooders. Use one male with several females, provide open sand and a few rocky retreats, and condition the fish with a varied, nutritious diet. After courtship and spawning, the female carries the fertilised eggs and fry in her mouth for around three weeks. She may be left to release the fry naturally or moved to a separate aquarium, where the young can be fed newly hatched brine shrimp, finely powdered fry food and crushed flakes.

Males are typically larger and much more colourful, developing intense red, orange and blue shades, longer fin extensions and more prominent egg spots on the anal fin. Females are usually smaller, with a silver-grey or brownish base colour and less pronounced patterning, although some females retain noticeable orange blotches.