HomeFish encyclopediaRay-finned fishesLive bearers, Killifishes and RivulinesPoeciliidsHighland swordtail Highland swordtail (Xiphophorus malinche) Scientific name: Xiphophorus malinche Rauchenberger, Kallman & Morizot, 1990 The Highland swordtail (Xiphophorus malinche) is a freshwater fish of the family Poeciliidae. In the aquarium it needs water at 15–21°C (59–70°F). Native range: Central America, Rio Panuco basin in Hidalgo, Mexico. Highland swordtail care at a glanceTemperature15–21°C (59–70°F) BiologyInhabits fast-flowing waters in sandy bottoms with rocks and dense plant growth.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameXiphophorus malincheFamilyPoeciliidae (Poeciliids)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length5.5EnvironmentFreshwater; benthopelagicClimateSubtropicalDistributionCentral America: Rio Panuco basin in Hidalgo, Mexico.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