|      Northern Mountain Swordtail -    Xiphophorus nezahualcoyotlSpecies name:  Xiphophorus nezahualcoyotl
 Synonym:
 
 Common name:  Northern Mountain Swordtail
 
 Family:  Poeciliidae
 
 Order:  Cyprinodontiformes
 
 Class:  Actinopterygii
 
 Maximum size:  6 cm / 2.3 inches
 
 Environment:  freshwater
 
 Origin:  Central America: Rio Tamasi drainage in San Luis Potosi, Mexico.
 
 Temperament:  Peaceful
 
 Company:  This Swordtail species can be kept in community aquariums with other species with  similar demands.
 
 Water parameters:  temperature 19-26°C / 66-79°F; pH 6.8 – 7.2
 
 Aquarium setup:  Xiphophorus nezahualcoyotl (Northern Mountain  Swordtail) should be kept in aquariums that are heavily planted along  the sides and in the back while leaving the middle open so that the  fishes get an open area to swim on. Decorate the bottom of the aquarium  in accordance with the needs of eventual other species kept in the  aquarium. Always keep more females than males.
 
 Feeding:  Xiphophorus nezahualcoyotl (Northern Mountain  Swordtail) prefers frozen and live food. The do however usually accept  most food sources.
 
 Breeding:  Xiphophorus nezahualcoyotl (Northern Mountain  Swordtail) are livebearers. The females give birth to their young in a  calm protected spot among plants. The fry immediately hides among the  plants. The pregnant females can be isolated before they give birth for  better breeding results.
 
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