HomeFish encyclopediaRay-finned fishesLive bearers, Killifishes and RivulinesPoeciliidsElongate toothcarp Elongate toothcarp (Poeciliopsis elongata) Scientific name: Poeciliopsis elongata G?nther, 1866 The Elongate toothcarp (Poeciliopsis elongata) is a freshwater fish of the family Poeciliidae. In the aquarium it needs water at 24–28°C (75–82°F). Native range: Eastern Central Pacific, Costa Rica and Panama. Elongate toothcarp care at a glanceTemperature24–28°C (75–82°F) BiologyForms large schools among mangroves in estuaries and brackish river mouths; also abundant in salt pans. Often in turbid, shallow surface waters. Ingests ooze and detritus. A truly viviparous fish.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePoeciliopsis elongataFamilyPoeciliidae (Poeciliids)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length13.0EnvironmentFreshwater; brackish;; pH range: 7.2 - 8.0; dH range: 10 - 30 benthopelagicClimateTropicalDistributionEastern Central Pacific: Costa Rica and Panama.Conservation status (IUCN)Near Threatened (NT)Threat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026