Maingano care guide
Maingano (Melanochromis cyaneorhabdos) — minimum tank 300 L, temperature 24-27 °C, pH 7.8-8.6.
Compiled by Aquairi from published sources · Published · Updated
Overview
Melanochromis cyaneorhabdos ("Maingano") is a Malawi mbuna in which both sexes share the male-type pattern — a dark blue body crossed by two pale electric-blue horizontal stripes. Adults reach about 11 cm. Endemic to the Likoma Island area.
Taxonomy
- Family: Cichlidae
- Genus: Melanochromis
- Scientific name: Melanochromis cyaneorhabdos
- Common synonyms: Maingano Cichlid
Habitat
Endemic to the rocky shore (mbuna zone) of Lake Malawi in the African Rift Valley, where it lives over wave-washed boulder slopes. The lake is exceptionally hard and alkaline — pH 7.8-8.6, KH 6-15 — and warm year round. The species is highly site-attached and territorial males defend small rock caves.
Tank requirements
- Minimum tank volume: 300 L (79.3 US gal)
- Adult size: 9-11 cm
- Temperature: 24-27 °C (75-81 °F)
- pH: 7.8-8.6
- GH: 10-20 °dGH
- Water flow: medium
- Lifespan: 6-10 years
Diet
In the wild it grazes the aufwuchs layer of algae, biofilm and associated micro-invertebrates that coats the rocks. In aquaria a vegetable-rich diet of spirulina and algae-based cichlid pellets, blanched vegetables and occasional frozen brine shrimp is appropriate; high-protein foods such as bloodworm should be avoided to prevent "Malawi bloat".
Compatibility
Aggressive and territorial; best kept in a large mbuna community with several other rock-dwelling species so that aggression is dispersed. A typical stocking is one male to several females (1:3-4). Avoid mixing with very different lake faunas (e.g., New World cichlids) and with similar-coloured congeners that may hybridise.
Breeding
A polygamous maternal mouthbrooder. The male defends a small rock territory, displays to passing females and entices each to spawn on a flat surface; the female collects the eggs into her mouth immediately and incubates them for about three weeks before releasing free-swimming fry.
Conservation status
IUCN Red List: see species page. The Lake Malawi cichlid radiation has been intensively assessed; most mbuna are evaluated and many are categorised Least Concern, though species with restricted ranges along single sub-shores are more vulnerable.
Maingano (Melanochromis cyaneorhabdos) Breeding Guide
Overview
Melanochromis cyaneorhabdos, the Maingano, is endemic to Lake Malawi around Likoma Island, where it lives over rocky substrates at depths of about 5 to 10 metres, and reaches around 10 cm. Listed as Critically Endangered, it is a maternal mouthbrooder whose captive propagation has real value.
Sexing
The species is difficult to sex because both males and females share the dark blue-black body with bright neon-blue horizontal stripes; dominant or sexually active males may simply show more intense colour. Notably, the female colouration differs from the related Melanochromis johannii, whose females are orange, so monomorphism is itself a useful identifying trait. The male carries the egg-shaped spots on the anal fin used during fertilisation.
Conditioning
Condition the group well in stable, hard alkaline water, keeping the pH around 8.2-8.5 and the temperature at about 25-27 degrees Celsius (77-80 degrees Fahrenheit) during the breeding period. In the wild the species lives over rock at depths of about five to ten metres, so a deep, rocky aquascape with secure territories suits it well.
Breeding Setup
An aquarium of around 90 cm (a 36-inch tank) furnished with flat stones and open substrate provides spawning sites. Use a harem of one male and at least three females to spread the male's attention.
Spawning Behavior & Trigger
The male can be quite aggressive in his pursuits during spawning. The female lays her eggs and takes them into her mouth, where they are fertilised via the egg spots on the male's anal fin.
Egg & Fry Care
The female may carry the eggs for up to three to four weeks before releasing the free-swimming fry, not feeding during this time and losing condition as a result. The fry are large enough to take brine shrimp nauplii from birth, and rearing them in a separate grow-out tank protects them from the boisterous adults.
Common Challenges
Because the sexes look alike, assembling a working harem relies on subtle colour intensity and behaviour rather than obvious dimorphism. A stressed holding female may abort her brood, so she should be left undisturbed; given the species' Critically Endangered status, maintaining pure, well-managed breeding stock is especially worthwhile.