HomeFreshwater aquarium fishRainbowfish & killifishHeinemann's killi Heinemann's killi (Aphyosemion heinemanni) Scientific name: Aphyosemion heinemanni Berkenkamp, 1983 The Heinemann's killi (Aphyosemion heinemanni) is a freshwater fish of the family Nothobranchiidae. In the aquarium it needs water at 22–26°C (72–79°F). Native range: Africa, Song Mahi, Cameroon. Heinemann's killi care at a glanceTemperature22–26°C (72–79°F) BiologyOccurs in clear forest brooks under forest cover. Not a seasonal killifish. Is difficult to maintain in aquarium.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAphyosemion heinemanniFamilyNothobranchiidae (African rivulines)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length5.0EnvironmentFreshwater;; pH range: 6.5 - 7.2 benthopelagic; non-migratoryClimateTropicalDistributionAfrica: Song Mahi, Cameroon.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries: of no interest; aquarium: 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