South east arm between Shire Bar and Nkhudzi, Lake Malawi, Malawi
Biotope:
Pure sandy bottoms at depths greater than 10 m.
Commonly recorded in experimental trawls between 10–30 m
in the southeastern arm of the lake.
Geographic distribution:
Probably lake-wide; recorded from Liuli Bay (Tanzania),
near Kande Island (Malawi),
and various localities in the southern part of the lake.
Typical adult size:
Maximum recorded total length about 15.5 cm,
with slightly larger individuals collected in Senga Bay.
Sexual dimorphism:
Yellow ventral fins and a narrow red margin to the dorsal fin
are characteristic.
Breeding males have not been observed underwater.
Aquarium setup:
Only one adult male per aquarium is recommended,
as males are almost permanently territorial.
Diet:
Tricuspid outer teeth and numerous small pharyngeal teeth
indicate a herbivorous diet, possibly grazing algae or diatoms from small stones and pebbles.
Aggression:
Males are almost permanently territorial in captivity.
Special notes:
Distinguished within the genus by strongly marked longitudinal stripes
and tricuspid outer teeth. Despite being common at certain depths,
it is absent from similar shallower habitats.
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