Pseudotropheus demasoni
by Nick Laferriere

Location: Pombo Rock and Ndumbi Rocks.

Biotope: Wave-washed Upper Rocky Habitat. They inhabit the upper 3 or 4 metres of the reefs.

Size: 7 cm but larger in the aquaria.

Diet: Picks aufwuchs from the large boulders where it lives. They dine on the algae strands and diatoms. These arenít normally found as groups as they defend their boulder as a territory/feeding site.

Temperment: In the aquaria their splendid coloration is often no match for the attitude this fish exhibits. Males are relentless in their pursuit of females and some suggest keeping atleast 20 or more individuals. A good enforcer fish can also be used such as Ps. sp.ízebra long pelvicí. In the wild males are seen at the tops of the boulders while females stay towards the mid/bottom.

Spawning Behaviour: The males are very aggressive in the aquaria. Best that atleast 6 or more females are kept per male unless itís a very large tank. In the wild no aggression has been seen exhibited and or even aggressive displays or behaviour when conspecifics meet. Theyíre a pure rock dwelling fish and will swim upside down and sideways along rocks, much like the Julidochromis species of Lake Tanganyika.

Breeding: They breed in the typical mbuna fashion with eggs spots. The females arenít very prolific due to their small size. They have anywhere from 5-15 fry and they hold for about 25 days, temperature pending. The colour is shown right from birth and fry can be quite aggressive with one another as well. The males are very striking and have matte black bars with bright blue barring. Very attractive mbuna!


Konings, Ad. (1990). Ad Konings's Book of Cichlids and All The Other Fishes of Lake Malawi: NJ: T.F.H. Publications Inc.

Konings, Ad. (1997). Back to Nature Guide to: Malawi Cichlids: Germany: Fohrman Aquaristik AB

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