Pelvicachromis pulcher, commonly known as the Kribensis or Rainbow Krib, is a vibrant cichlid native to the rivers of Nigeria and Cameroon. It displays striking colors, especially during breeding. These fish are known for their fascinating mating dances and strong parental care, nurturing fry in sheltered riverbeds.

Pelvicachromis pulcher, commonly known as the Kribensis cichlid or the rainbow krib, is native to West Africa. Its geographical distribution includes the inland waters of Nigeria and Cameroon, particularly in the Niger River Delta and its surrounding tributaries. The species is also found in the coastal regions of these countries.

Pelvicachromis pulcher typically inhabits freshwater environments, including slow-moving rivers, streams, and brackish waters in estuarine areas. The water conditions are generally soft to moderately hard, with a pH range of 5.6 to 6.9 and temperatures between 24°C to 27°C (75°F to 81°F). These conditions reflect the tropical climate of its native range, characterized by high humidity and warm temperatures year-round.

The Kribensis cichlid occupies a benthic ecological niche, often found in areas with dense aquatic vegetation, submerged roots, and rock formations that provide shelter and breeding sites. The species is adapted to a diet consisting of small invertebrates, plant matter, and detritus, reflecting its omnivorous feeding habits. It plays a role in controlling invertebrate populations and contributes to the ecological balance of its habitat.