HomeFreshwater aquarium fishGuppies & livebearersLambert's lampeye Lambert's lampeye (Rhexipanchax lamberti) Scientific name: Rhexipanchax lamberti Daget, 1962 The Lambert's lampeye (Rhexipanchax lamberti) is a freshwater fish of the family Poeciliidae. In the aquarium it needs water at 22–28°C (72–82°F). Native range: Africa, Upper Gambia and Bafing river drainages in Upper Guinea. Lambert's lampeye care at a glanceTemperature22–28°C (72–82°F) BiologyOccurs in brooks, small rivers and streams under forest cover. Not a seasonal killifish. Is very difficult to maintain in aquarium.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameRhexipanchax lambertiFamilyPoeciliidae (Poeciliids)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length4.5Common length3.5EnvironmentFreshwater;; pH range: 6.5 - 7.2 benthopelagic; non-migratoryClimateTropicalDistributionAfrica: Upper Gambia and Bafing river drainages in Upper Guinea.Conservation status (IUCN)Vulnerable (VU) (B1ab(iii)+2ab(iii))Threat to humansHarmlessUsesFisheries:; aquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More guppies & livebearersPoecilia wingeiBold characodonCharacodon audaxBluetail goodeaAtaeniobius toweriButterfly splitfinAmeca splendensMollyPoecilia sphenopsSouthern platyfishXiphophorus maculatusSee all guppies & livebearers SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026