HomeFreshwater aquarium fishGuppies & livebearersCatemaco platyfish Catemaco platyfish (Xiphophorus milleri) Scientific name: Xiphophorus milleri Rosen, 1960 The Catemaco platyfish (Xiphophorus milleri) is a freshwater fish of the family Poeciliidae. In the aquarium it needs water at 24–28°C (75–82°F). Native range: Central America, Papaloapan ecoregion in Mexico. Catemaco platyfish care at a glanceTemperature24–28°C (75–82°F) BiologyOccurs mainly in shallow tributaries of a lake. Found also in shallow mouths of inlets along the shoreline. Occasionally forms large aggregations and prefers mainly very shallow depths of about 10 cm. Lives sympatrically with Xiphophorus hellerii.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameXiphophorus milleriFamilyPoeciliidae (Poeciliids)OrderCyprinodontiformes (Live bearers, Killifishes and Rivulines)ClassActinopterygii (Ray-finned fishes)Maximum length3.0Depth range2 m (7 ft)EnvironmentFreshwater; brackish;; pH range: ? - 7.5; dH range: 4 - 15 benthopelagic; depth range ? - 2 mClimateTropicalDistributionCentral America: Papaloapan ecoregion in Mexico.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) 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