One PAIR - Xiphophorus nezahualcoyotl is a livebearing poecilid which is found in rivers and creeks in the state San Luis Potosi, Mexico. The common name for this fish is the "Northern Mountain Swordtail" since it occurs at higher elevations. In the hobby, they have picked up the colloquial name of "Nezzie Swords", most likely since the species name is difficult to pronounce! THE PIC IS NOT PHOTO SHOPPED! THIS IS OUR PICTURE.