Shallow sandy bays and shoreline areas densely covered with emergent
vegetation and submerged Vallisneria beds.
Geographic distribution:
Lake Malawi (Malawi Lake), East Africa.
Typical adult size:
Males up to 22 cm, females slightly smaller (around 18 cm).
Sexual dimorphism:
Males are larger and show a light blue body with a metallic blue head,
yellow–orange scale margins and pointed dorsal and anal fins.
Females are smaller, silvery-grey with rounded fins.
Recommended aquarium size:
At least 600 litres; minimum tank length 150 cm.
Aquarium setup:
Fine sand substrate with large, robust aquatic plants (especially
Vallisneria). Some rock slabs for shelter and retreat.
Diet:
Herbivorous. Specialised grazer feeding almost exclusively on algae and
aufwuchs growing on aquatic plants.
Breeding:
Maternal mouthbrooder. Eggs are laid on sand or flat stones, fertilised
by the male and then taken into the female’s mouth. Incubation lasts
about three weeks at ~26 °C.
Aggression:
Peaceful within the species and towards other fishes.
Best kept in groups rather than pairs.
Special notes:
The only Malawi cichlid known to feed exclusively on the aufwuchs of
submerged plants, earning it the nickname “Vallisneria grazer”.
Photo gallery