HomeFreshwater aquarium fishRainbowfish & killifishGolden pheasant panchax Golden pheasant panchax (Callopanchax occidentalis) Scientific name: Callopanchax occidentalis Clausen, 1966 The Golden pheasant panchax (Callopanchax occidentalis) is a freshwater fish of the family Nothobranchiidae. In the aquarium it needs water at 20–24°C (68–75°F). Golden pheasant panchax care at a glanceTemperature20–24°C (68–75°F) BiologyOccurs in pools, swamps and swampy parts of brooks in the rainforest and humid forested savanna. 9 cm TL. Parents die during dry season and eggs left in the mud hatch only when the waters return at the start of the next rainy season. Feeds on worms, crustaceans and insects. Bottom spawner, 3 months incubation. Is very difficult to maintain in aquarium.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCallopanchax occidentalisFamilyNothobranchiidae (African rivulines)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length8.0EnvironmentFreshwater;; pH range: 6.3 - 7.0; dH range: 1 - 6 benthopelagic; non-migratoryClimateTropicalDistributionAfrica: coastal river systems in Sierra Leone from the Little Scarcies river drainage to lower Lofa river drainage in western Liberia. Probably also in southeastern Guinea.Conservation status (IUCN)Near Threatened (NT)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