HomeFish encyclopediaRay-finned fishesLive bearers, Killifishes and RivulinesPupfishesComanche Springs pupfish Comanche Springs pupfish (Cyprinodon elegans) Scientific name: Cyprinodon elegans Baird & Girard, 1853 The Comanche Springs pupfish (Cyprinodon elegans) is a freshwater fish of the family Cyprinodontidae. In the aquarium it needs water at 18–26°C (64–79°F). Comanche Springs pupfish care at a glanceTemperature18–26°C (64–79°F) BiologyOccurs in springs, spring-fed canals and ditches, usually over mud in current. Not a seasonal killifish. Is difficult to maintain in aquariumSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCyprinodon elegansFamilyCyprinodontidae (Pupfishes)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length6.2Common length3.8EnvironmentFreshwater; benthopelagic; non-migratoryClimateTemperateDistributionNorth America: restricted to Toyah Creek and the effluents (including irrigation canals) of San Solomon, Phantom Cave and Griffin springs in Reeves County in Texas, USA.Conservation status (IUCN)Endangered (EN) (A2ce, B1+2ac)Threat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Assuming tm SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026