HomeFreshwater aquarium fishGuppies & livebearersSail-fin molly Sail-fin molly (Poecilia velifera) Scientific name: Poecilia velifera Regan, 1914 The Sail-fin molly (Poecilia velifera) is a freshwater fish of the family Poeciliidae. In the aquarium it needs water at 25–28°C (77–82°F). Native range: Central America, Yucat?n-Quintana Roo and lower Usumacinta-Laguna de T?rminos systems in Mexico. Sail-fin molly care at a glanceTemperature25–28°C (77–82°F) BiologyFeeds on worms, crustaceans, insects and plant matter. Aquarium keeping: minimum aquarium size 60 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePoecilia veliferaFamilyPoeciliidae (Poeciliids)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length15.0EnvironmentFreshwater; brackish;; pH range: 8.0 - 8.0; dH range: 13 - 19 benthopelagic; non-migratoryClimateTropicalDistributionCentral America: Yucat?n-Quintana Roo and lower Usumacinta-Laguna de T?rminos systems in Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest; aquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (tm More guppies & livebearersMollyPoecilia sphenopsSouthern platyfishXiphophorus maculatusGreen swordtailXiphophorus helleriiGuppyPoecilia reticulataSailfin mollyPoecilia latipinnaMosquitofishGambusia affinisSee all guppies & livebearers SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026