HomeFish encyclopediaRay-finned fishesLive bearers, Killifishes and RivulinesAfrican rivulinesBates' killi Bates' killi (Aphyosemion batesii) Scientific name: Aphyosemion batesii Boulenger, 1911 The Bates' killi (Aphyosemion batesii) is a freshwater fish of the family Nothobranchiidae. In the aquarium it needs water at 22–26°C (72–79°F). Bates' killi care at a glanceTemperature22–26°C (72–79°F) BiologyRestricted to the inland plateau where it inhabits raffia swamps and swampy parts of shallow brooks under forest cover. Bottom spawner, 2 months incubation.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAphyosemion batesiiFamilyNothobranchiidae (African rivulines)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length9.0EnvironmentFreshwater;; pH range: 5.8 - 7.2 benthopelagic; non-migratoryClimateTropicalDistributionAfrica: Sanaga, Nyong, Ivindo, Lobo, Dja, Sangha, Doum?, Boumba, lower Ubangi and middle Congo River basin in Cameroon, Gabon, Congo Republic and Democratic Republic of the Congo.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026