HomeFreshwater aquarium fishRainbowfish & killifishGolden killi Golden killi (Aphyosemion aureum) Scientific name: Aphyosemion aureum Radda, 1980 The Golden killi (Aphyosemion aureum) is a freshwater fish of the family Nothobranchiidae. In the aquarium it needs water at 18–22°C (64–72°F). Native range: Africa, Upper Lolo- and Yaou river systems in southern Gabon. Golden killi care at a glanceTemperature18–22°C (64–72°F) BiologyOccurs in small fast flowing mountain brooks. Not a seasonal killifish. Is easy to maintain in the aquarium.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAphyosemion aureumFamilyNothobranchiidae (African rivulines)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length5.0EnvironmentFreshwater;; pH range: 5.8 - 7.2 benthopelagic; non-migratoryClimateTropicalDistributionAfrica: Upper Lolo- and Yaou river systems in southern Gabon.Conservation status (IUCN)Vulnerable (VU) (B1ab(iii)+2ab(iii))Threat to humansHarmlessUsesAquarium: commercial More rainbowfish & killifishTwostripe lyretailAphyosemion bivittatumRed-Tailed SilversideBedotia geayiLyretail panchaxAphyosemion australeCelebes rainbowfishMarosatherina ladigesiCelebes rainbowTelmatherina celebensisMarmorated medakaOryzias marmoratusSee all rainbowfish & killifish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026