There are two species of platy from southern Mexico - platy maculatus and platy variatus. The variatus have higher dorsal fins, jump a bit more, and grow slightly larger than the maculatus. The two species will breed and several hybrids are available - particularly the assorted hi-fin platies. AquairumFishSale.com carries the sunset variatus for their striking color and overall friendly disposition. These fish can live in freshwater and brackish water.