Mbuna is a term used for the rock-dwelling cichlids of Lake Malawi, and the name literally translates to 'rockfish' in the Tonga language. These fish are renowned for their incredible coloration, often rivaling saltwater fish, as well as their extremely active and territorial behavior.
Natural Habitat and Setup
In the wild, Mbuna live in the rocky coastal areas. For aquarists, this means the aquarium should be decorated with plenty of rocks reaching up to the surface. This creates the necessary caves and territories the fish require. Using sand as a substrate is important, as many species dig to establish their own territories.
Water Parameters
Lake Malawi is known for its very stable, alkaline water. To thrive, Mbuna must be kept in water with a high pH value, typically between 7.8 and 8.6. The temperature should remain stable between 24-26°C. Since these fish are often kept in overstocked tanks to disperse aggression (crowding), powerful filtration and frequent water changes are an absolute necessity.
Diet and Feeding
Mbuna are primarily herbivores. In nature, they graze on the algae growing on the rocks (known as 'aufwuchs'). As aquarists, we must be careful with protein-rich foods; a diet based on Spirulina and specialized Malawi flakes is essential to prevent digestive issues such as 'Malawi bloat'.
Social Behavior and Breeding
Mbuna are known for their complex hierarchy. They are all maternal mouthbrooders, meaning the female takes the eggs into her mouth after spawning and protects the fry there for about 3-4 weeks. It is a fantastic experience to watch the female 'spit' the fully developed fry when they are ready to fend for themselves.
