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Tropheus moorii "Chimba" Care Guide

Tropheus moorii is an algae-grazing cichlid endemic to Lake Tanganyika. The Chimba colour form requires a large colony and a strictly herbivorous diet.

Overview

Tropheus moorii is a cichlid endemic to Lake Tanganyika in East Africa. The species is notable for its high regional variation, with many distinct colour morphs occurring along the lake shoreline. The Chimba population from Tanzania carries a bright lemon-yellow vertical band over a dark body. Adults are diurnal grazers that hold individual feeding territories.

Taxonomy

  • Family: Cichlidae
  • Genus: Tropheus
  • Scientific name: Tropheus moorii "Chimba"
  • Described: Boulenger, 1898
  • Common synonyms: Chimba Lemon

Habitat

The species inhabits shallow bays and the upper rocky reefs of Lake Tanganyika, where the water is well illuminated. Fish remain close to rocky surfaces from which they scrape their food. Both males and females maintain feeding territories; males stay in a fixed area for extended periods, while females move between territories.

Tank requirements

  • Minimum tank volume: 400 L for a colony
  • Temperature: 24-27 °C (75-81 °F)
  • pH: 8.5-9.2
  • GH: 12-25 °dGH
  • Colony size: 12 or more individuals
  • Lifespan: 8-12 years

Diet

In the wild Tropheus moorii is a strict herbivore that spends most of its time scraping filamentous algae from rocks. A high-fibre, vegetable-based diet is essential; protein-rich foods are associated with digestive disease in this genus. Feeding is best given in small amounts once or twice daily.

Compatibility

The species is aggressive and intolerant, which is managed by keeping a large group so aggression is diluted. Suitable Lake Tanganyika companions include other Tropheus, Petrochromis and open-water Cyprichromis. Mixing with Lake Malawi mbuna or soft-water fish such as discus should be avoided.

Breeding

Tropheus moorii is a maternal mouthbrooder practising serial monogamy. Females produce a small clutch of large eggs and brood the developing young in the mouth for roughly 30 to 35 days, providing extended parental care before release.

Conservation status

FishBase lists Tropheus moorii as Near Threatened (NT) on the IUCN Red List (assessed 2025). As a Tanganyika endemic, it is sensitive to localised habitat pressure.

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