Saulos' Mbuna care guide
Saulos' Mbuna (Pseudotropheus saulosi) — minimum tank 250 L, temperature 24-27 °C, pH 7.8-8.6.
Compiled by Aquairi from published sources · Published · Updated
Overview
Pseudotropheus saulosi is a dwarf mbuna endemic to a single sub-shore of Lake Malawi (Taiwan Reef). It is strongly sexually dichromatic — adult males are vivid electric blue with black vertical bars, while females and juveniles are bright lemon yellow. Adults reach about 10 cm.
Taxonomy
- Family: Cichlidae
- Genus: Pseudotropheus
- Scientific name: Pseudotropheus saulosi
- Common synonyms: Saulosi, Chindongo saulosi
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: 250 L (66 US gal)
- Adult size: 8-10 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.
Pseudotropheus saulosi Breeding Guide
Overview
Pseudotropheus saulosi (also placed in Chindongo) is a dwarf mbuna cichlid endemic to Taiwan Reef in Lake Malawi, reaching about 8.6 cm total length. It is a maternal mouthbrooder and a highly productive one. The wild population is Critically Endangered, and captive-bred fish are being used in efforts to re-stock Taiwan Reef.
Sexing
The species shows strong colour-based sexual dimorphism. Fish are born yellow; as they mature, males turn blue with several vertical black bars, while females remain a vivid solid yellow. Some younger males can retain female coloration and only colour up and become dominant when the alpha male departs.
Breeding Setup
Maintain hard, alkaline Malawi conditions (24-27 °C, pH 7.8-8.6, GH 10-20) with a rocky aquascape that provides territories. As a rock-dwelling mbuna, it grazes algae and the small animals associated with it, so a herbivore-oriented diet supports condition for breeding.
Egg & Fry Care
After spawning the female holds the eggs in her mouth until the fry are able to swim, which normally takes 13-18 days. The species is very productive: even quite young females can produce broods of 20-25 fry, and it is not unusual to have four to five broods within just six months. Holding females may be moved to a separate tank to maximise fry survival.
Common Challenges
As with other mbuna, male aggression can be intense in confined quarters, so adequate rockwork and a suitable sex ratio are important. Given the species' Critically Endangered wild status, maintaining genetically diverse captive lines is a worthwhile goal for breeders.