San Jeronimo livebearer (Poeciliopsis fasciata)

Scientific name: Poeciliopsis fasciata Meek, 1904

The San Jeronimo livebearer (Poeciliopsis fasciata) is a freshwater fish of the family Poeciliidae. In the aquarium it needs water at 24–30°C (75–86°F). Native range: Central America, Mexico in Laguna Coyuca near Acapulco, Guerrero as far as the Rio Pijijiapan in Chiapas and Rio Coatzacoalcos in Oaxaca.

San Jeronimo livebearer care at a glance

Temperature: 24–30°C (75–86°F)

Species facts

Scientific name: Poeciliopsis fasciata
Family: Poeciliidae (Poeciliids)
Order: Cyprinodontiformes (Live bearers, Killifishes and Rivulines)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 3.0
Environment: Freshwater; brackish;; pH range: 7.0 - 8.0; dH range: ? - 25 benthopelagic
Climate: Tropical
Distribution: Central America: Mexico in Laguna Coyuca near Acapulco, Guerrero as far as the Rio Pijijiapan in Chiapas and Rio Coatzacoalcos in Oaxaca.
Conservation status (IUCN): Near Threatened (NT)
Threat to humans: Harmless
Resilience: High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

Last updated 27 September 2026