HomeFreshwater aquarium fishBarbs, danios & rasborasRainbow gudgeon Rainbow gudgeon (Sarcocheilichthys nigripinnis nigripinnis) Scientific name: Sarcocheilichthys nigripinnis nigripinnis G?nther, 1873 The Rainbow gudgeon (Sarcocheilichthys nigripinnis nigripinnis) is a freshwater fish of the family Cyprinidae. Native range: Asia, Amur River basin to Hainan, China. Also Taiwan. Species factsScientific nameSarcocheilichthys nigripinnis nigripinnisFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length12.5Common length7.5EnvironmentFreshwater; benthopelagicClimateTemperateDistributionAsia: Amur River basin to Hainan, China. Also Taiwan.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: public aquariumsResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More barbs, danios & rasborasLeast rasboraBoraras urophthalmoidesGlowlight rasboraTrigonostigma hengeliTwospot rasboraRasbora elegansGoldfinned barbPuntius sachsiiCoppernose barbRaiamas christyiLong snouted barbPuntius dorsalisSee all barbs, danios & rasboras SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026