HomeFreshwater aquarium fishRainbowfish & killifishTwo-striped Aphyosemion Two-striped Aphyosemion (Aphyosemion bitaeniatum) Scientific name: Aphyosemion bitaeniatum Ahl, 1924 The Two-striped Aphyosemion (Aphyosemion bitaeniatum) is a freshwater fish of the family Nothobranchiidae. In the aquarium it needs water at 22–24°C (72–75°F). Native range: Africa, southern Togo, southern Benin, and southern Nigeria. Two-striped Aphyosemion care at a glanceTemperature22–24°C (72–75°F) BiologyOccurs in brooks and small streams in the coastal rainforest on quaternary sediment soil. Not a seasonal killifish. Is easy to maintain in the aquarium.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAphyosemion bitaeniatumFamilyNothobranchiidae (African rivulines)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length5.0EnvironmentFreshwater;; pH range: 5.8 - 7.2 benthopelagic; non-migratoryClimateTropicalDistributionAfrica: southern Togo, southern Benin, and southern Nigeria.Conservation status (IUCN)Least Concern (LC)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