HomeFish encyclopediaRay-finned fishesLive bearers, Killifishes and RivulinesPoeciliidsCreole topminnow Creole topminnow (Girardinus creolus) Scientific name: Girardinus creolus Garman, 1895 The Creole topminnow (Girardinus creolus) is a freshwater fish of the family Poeciliidae. In the aquarium it needs water at 22–26°C (72–79°F). Native range: Central America, Cuba. Creole topminnow care at a glanceTemperature22–26°C (72–79°F) BiologyPrefers to inhabit pools and areas along banks of swift, clear, cool, well-oxygenated highland streams. A midwater swimmer, never found at the surface and seldom on the bottom, over hard substrates composed of smooth rocks, gravel, or sand. Feeds on algae, aquatic plants and insect larvae.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameGirardinus creolusFamilyPoeciliidae (Poeciliids)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length4.4EnvironmentFreshwater; benthopelagic; non-migratoryClimateTropicalDistributionCentral America: Cuba.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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