Panuco swordtail (Xiphophorus nigrensis)

Scientific name: Xiphophorus nigrensis Rosen, 1960

The Panuco swordtail (Xiphophorus nigrensis) is a freshwater fish of the family Poeciliidae. In the aquarium it needs water at 24–25°C (75–77°F). Native range: Central America, Rio Choy of the Rio Panuco basin in San Luis Potosi, Mexico.

Panuco swordtail care at a glance

Temperature: 24–25°C (75–77°F)

Biology

Inhabits fast-flowing river segments with steep banks and overhanging bank vegetation.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Xiphophorus nigrensis
Family: Poeciliidae (Poeciliids)
Order: Cyprinodontiformes (Live bearers, Killifishes and Rivulines)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 6.0
Environment: Freshwater;; pH range: ? - 7.5; dH range: ? - 25 benthopelagic
Climate: Tropical
Distribution: Central America: Rio Choy of the Rio Panuco basin in San Luis Potosi, Mexico.
Conservation status (IUCN): Not Evaluated
Threat to humans: Harmless
Uses: Aquarium: commercial
Resilience: High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)