HomeFish encyclopediaRay-finned fishesPerch-like fishCichlidsSlender happy Slender happy (Chetia gracilis) Scientific name: Chetia gracilis Greenwood, 1984 The Slender happy (Chetia gracilis) is a freshwater fish of the family Cichlidae. Species factsScientific nameChetia gracilisFamilyCichlidae (Cichlids)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length11.8EnvironmentFreshwater; demersalClimateTropicalDistributionAfrica: Cutato River, a tributary of the Okavango in Angola. Recently recorded from the Cunene. Known only from a few specimens. The taxonomy of this species is under review and it is likely to be placed in another genus in the near future.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries:ResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026