HomeFreshwater aquarium fishRainbowfish & killifishLyretail panchax Lyretail panchax (Aphyosemion australe) Scientific name: Aphyosemion australe Rachow, 1921 The Lyretail panchax (Aphyosemion australe) is a freshwater fish of the family Nothobranchiidae that grows to about 6 cm (2.4 in). It is easy to keep and peaceful, suits community aquariums and needs a tank of at least 40 L (11 US gal), water at 21–24°C (70–75°F) and a pH of 6.0–7.0. Native range: Africa, Angola, Gabon, Cameroon and Congo. Lyretail panchax care at a glanceCare levelEasyTemperamentPeacefulCommunity tankExcellentAdult size6 cm (2.4 in)Minimum tank40 L (11 US gal)Temperature21–24°C (70–75°F)pH6.0–7.0Hardness5–12 dGH (89–214 ppm)DietOmnivore. Accepts flakes, freeze-dried foods, frozen foods and live foods. BiologyFeeds on worms, crustaceans and insects. Two color morphs, chocolate and gold, are in the aquarium trade. Not a seasonal killifish. Aquarium keeping: minimum aquarium size 60 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAphyosemion australeFamilyNothobranchiidae (African rivulines)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length6.0EnvironmentFreshwater;; pH range: 6.0 - 7.0; dH range: 5 - 12 benthopelagic; non-migratoryClimateTropicalDistributionAfrica: Angola, Gabon, Cameroon and Congo.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interest; aquarium: commercial More rainbowfish & killifishTwostripe lyretailAphyosemion bivittatumRed-Tailed SilversideBedotia geayiCelebes rainbowfishMarosatherina ladigesiCelebes rainbowTelmatherina celebensisMarmorated medakaOryzias marmoratusArgentine pearlfishAustrolebias bellottiiSee all rainbowfish & killifish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0. Aquarium care parameters compiled, checked and converted to metric and imperial units by Guppies.za.net.Last updated 28 September 2026