The Pseudotropheus flavus is a very aggressive and territorial fish. Males are yellow in color, while females are brown. It has been recorded exclusively at Chinyankwazi Island and Chinyamwezi Reef. Habitat It inhabits rocky areas around the island and reef.
| Scientific name | Common Name | Size | Temperament |
| Pseudotropheus Flavus | Flavus mbuna | 90mm | Aggressive |
| Water Temperature | Water pH | Tank size | Diet |
| 24-28oC | 7.6-8.0 | 160 litres | omnivore |