Fossorochromis

F. rostratus was formerly classified as Haplochromis rostratus. When startled, it may bury itself in the substrate. It often displays its natural sand-sifting method of feeding in aquaria, and a substrate of sand is essential as gravel may injure the fish. In nature, it is only the largest dominant males that build nests, whilst the subdominant males and females shoal together. There also exists a feeding relationship between this species and Cyrtocara moorii in the wild, in which shoals of C. m...