One of the most common Danios available, the Leopard Danio is a spotted ornamental variant of the Zebra Danio. These fish are native to the freshwater streams of Southeast Asia where they can be found in large schools. Leopard Danios have a metallic brownish gold coloration and their bodies are ornamented with a number of bluish gray leopard-like spots after which they are named. The long-finned variant of this species is similar in coloration and pattern but exhibits longer, more flowing fins.