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Tropheops biriwira (formerly known as Tropheops sp."elongatus greenback") is a species from which are existing several geographic varieties. It can be found in the neighbourhood of many different places in the southern part of the lake like Mumbo Island, Thumbi West Island, Domwe Island, Otter Island and further along the entire westcoast of the peninsula Nankhumba but they can also be found along the eastern side on different locations like Tsano Rock, Makokola Reef, Boadzulu Island, Chemwezi Rocks and Mphande Island. Mainly they are living in rocky environments. This variant has been photographed near Tsano Rock. In the lake the males of these species can grow to 9 cm, in the aquarium however they can grow a little taller because of a good feeding. The males can then grow to about 12 cm, females grow to about 10 cm. Tropheops biriwira can behave intolerant against equal species, against other inhabitants they are in general tolerant. You can best keep this species with multiple females and other mbunas in an aquarium with a lot of hiding places. In the lake they are mainly feeding themselves with algae from the rocks. In the aquarium they are comfortable with any food. They take everything they get offered, like spirulina pellets, mysis, artemia, cyclops and shrimp-peas mix. Food rich of algae like spirulina pellets or flakes is very important to them so this should not be missing on their menu. 
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