Intermediate habitat at the rock–sand interface, also
occurring in purely rocky areas.
Geographic distribution:
Originally occurred only at Likoma Island, but was later
also introduced to Thumbi West Island.
Typical adult size:
Maximum recorded size is about 11–12 cm total
length in the wild. In aquarium conditions individuals
may reach at least 14 cm total length.
Sexual dimorphism:
Males are larger, darker and develop markedly longer
unpaired fins, especially the caudal fin. Females are
yellow to yellow-white and more slender, with the
melanin pattern mainly visible in the dorsal fin.
Recommended aquarium size:
An aquarium volume of 300 L is recommended.
Aquarium setup:
Provide rock structures with caves and open sandy areas.
In larger aquaria several males may be maintained with
multiple females.
Diet:
Omnivorous. Feeds on attached algae from rocks and sand
substrate as well as on plankton. In captivity accepts
various foods but should be offered mainly vegetable-
based items to avoid obesity.
Breeding:
Maternal mouth-brooder. Males excavate a pit beneath a
stone and attract females by display. Spawning occurs
in the prepared site and females incubate eggs and fry
in the mouth for about 3 weeks.
Aggression:
Considered one of the more peaceful mbuna. Males are
weakly territorial but generally less aggressive than
many related species.
Special notes:
Member of the P. johannii species group together with
P. johannii, P. cyaneorhabdos and
P. interruptus. Historically placed in
Melanochromis due to superficial resemblance,
but later reassigned to Pseudotropheus.
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