HomeFreshwater aquarium fishTetras & characinsFanning pyrrhulina Fanning pyrrhulina (Pyrrhulina rachoviana) Scientific name: Pyrrhulina rachoviana Myers, 1926 The Fanning pyrrhulina (Pyrrhulina rachoviana) is a freshwater fish of the family Lebiasinidae. In the aquarium it needs water at 15–22°C (59–72°F). Native range: South America, Argentina and Brazil. Fanning pyrrhulina care at a glanceTemperature15–22°C (59–72°F) Species factsScientific namePyrrhulina rachovianaFamilyLebiasinidae (Pencilfishes)OrderCharaciformes (Characins)ClassActinopterygii (Ray-finned fishes)Maximum length3.9EnvironmentFreshwater;; pH range: 6.0 - 7.8; dH range: ? - 20 benthopelagicClimateSubtropicalDistributionSouth America: Argentina and Brazil.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceLow, minimum population doubling time 4.5 - 14 years (Fec = 50) More tetras & characinsNannostomus marginatusSilver dollarMetynnis hypsauchenRedhook myleusMyloplus rubripinnisSilver prochilodusSemaprochilodus taeniurusDarter characinCharacidium fasciatumRedflank bloodfinAphyocharax rathbuniSee all tetras & characins SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026