HomeFish encyclopediaRay-finned fishesPerch-like fishCichlidsGolden-margined hap Golden-margined hap (Otopharynx auromarginatus) Scientific name: Otopharynx auromarginatus Boulenger, 1908 The Golden-margined hap (Otopharynx auromarginatus) is a freshwater fish of the family Cichlidae. Native range: Africa, Occurs in Lake Malawi and the upper Shire River. BiologyCommon at 10 m depth and prefers the area where non-breeding individuals congregate into schools over the sandy part of the biotope. Feeds on phytoplankton or takes its food from the somewhat muddy layer on the substrate.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOtopharynx auromarginatusFamilyCichlidae (Cichlids)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length24.5EnvironmentFreshwater; demersalClimateTropicalDistributionAfrica: Occurs in Lake Malawi and the upper Shire River.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026