[Ebook] 500 freshwater aquarium fish – Livebeavers – Swordtail (Xiphophorus helleri)
True wild-type swordtails are hardly ever seen within the general hobby today. Considerable numbers of this highly variable species are, however, kept by livebearer enthusiasts who represent the best source of such specimens. Elsewhere, the vast majority of swordtails are available in a wide range of color and fin varieties that have been developed over many decades. Many of these cultivated fish are the result of crosses between Swordtail and one or other of two of its close relatives, X. maculatus (Southern Platy) andx variatus (Sunset Platy).