HomeFreshwater aquarium fishRainbowfish & killifishGabon jewelfish Gabon jewelfish (Aphyosemion cyanostictum) Scientific name: Aphyosemion cyanostictum Lambert & G?ry, 1968 The Gabon jewelfish (Aphyosemion cyanostictum) is a freshwater fish of the family Nothobranchiidae. In the aquarium it needs water at 25–35°C (77–95°F). Native range: Africa, Ivindo river drainage system, between Ovan and B?linga, northern Gabon. Congo. Gabon jewelfish care at a glanceTemperature25–35°C (77–95°F) BiologyOccurs in small, mostly swampy brooks in the rainforest. Not a seasonal killifish. Is very difficult to maintain in aquarium.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAphyosemion cyanostictumFamilyNothobranchiidae (African rivulines)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length6.5Common length3.5EnvironmentFreshwater;; pH range: 5.5 - 6.5; dH range: ? - 12 demersal; non-migratoryClimateTropicalDistributionAfrica: Ivindo river drainage system, between Ovan and B?linga, northern Gabon. Congo.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interest; aquarium: commercial More rainbowfish & killifishRed-Tailed SilversideBedotia geayiTwostripe lyretailAphyosemion bivittatumLyretail 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