HomeFish encyclopediaRay-finned fishesLive bearers, Killifishes and RivulinesSplitfinsChapultepec splitfin Chapultepec splitfin (Girardinichthys viviparus) Scientific name: Girardinichthys viviparus Bustamante, 1837 The Chapultepec splitfin (Girardinichthys viviparus) is a freshwater fish of the family Goodeidae. In the aquarium it needs water at 20–22°C (68–72°F). Native range: Central America, Mexico. Chapultepec splitfin care at a glanceTemperature20–22°C (68–72°F) BiologyInhabits small lakes, ponds and pools. Sold as dry fish.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGirardinichthys viviparusFamilyGoodeidae (Splitfins)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length6.5EnvironmentFreshwater; benthopelagicClimateTropicalDistributionCentral America: Mexico.Conservation status (IUCN)Critically Endangered (CR) (A1ce+2ce, B1+2abc)Threat to humansHarmlessUsesFisheries: minor commercialResilienceLow, minimum population doubling time 4.5 - 14 years (Assuming Fec SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026