Maylandia or Metriaclima is a genus of Haplochromine cichlids endemic to lake Malawi in east Africa. They belong to the Mbuna (rock-dwelling) Haplochromines. All species in this genus are relatively small fishes, less than 20 cm (7.9 in) in length. Like most lake Malawi cichlids, exhibit brood care via maternal mouthbrooding. Numerous members of the genus are traded as aquarium fish. They are attractive because they are brightly colored and often very sexually dimorphic; like other cichlids they are not suited for beginners and for most companion tanks.