|Scientific name||Altolamprologus calvus|
|Size||Up to 6" (15cm), female smaller - 4" (10cm).|
|Origin||Lake Tanganyika, E.Africa|
|Tank setup||Piles of rocks, with sand or fine gravel substrate. Shells can also be added.|
|Compatibility||Not for the community tank, keep with similar sized Tanganyikan cichlids, which are not
overly aggressive, such as Julidochromis or larger shell dwellers.|
|Water chemistry||Hard and alkaline: pH 7.8-9.0, GH 12-20, KH 14-20|
|Feeding||Will take most aquarium foods, but frozen or live foods are preferred, such as bloodworm and brine shrimp (Artemia).|
|Sexing||Males are usually significantly larger in established pairs. Mature males will also appear deeper
bodied with more elongated finnage. These differences are not apparent in juveniles.|
|Breeding||Substrate spawner, the female will usually select a cave with a very narrow entrance, which the
male cannot enter. The male will guard the surrounding territory.
The female will guard the eggs and fry until they are free swimming.|
A. calvus is a slow-growing cichlid, but becomes a truly stunning fish and a superb addition to a Tanganyikan setup.
There are a number of colour variants, such as the 'white' calvus and the stunning 'black' form.
Altolamprologus may eat very small fishes and fry, but are not generally a danger to adult Tanganyikan cichlids.
They should not be kept with boisterous fishes such as Tropheus and the Malawi mbuna.