The Clown Tang comes from the islands of Fiji, Maldives and Vanuatu.Clown tangs are one of the largest and most aggressive in the Acanthurus family. 

If you plan on keeping a Clown Tang, they spend much of their time grazing for algae so have plenty of live rock for them to graze on. They will also feed on dried algae or seaweed attached to a lettuce clip. This tang (and tangs in general) requires highly oxygenated water so make sure you have plenty of water surface agitation and/or air stones.In the wild, Clown Tangs are open swimmers in fast moving waters, have an aquarium large enough (150+ gallons)  to properly house a Clown Tang before making your purchase. 

Use caution when netting a Clown Tang because of the blades at the base of their tail fin. The blades can easily get hooked into the net. If this happens, gently move the net back and forth in the aquarium until the tang is released. 

 Like many marine species, you will have better results if you keep only one tang in your aquarium because they will become territorial otherwise. They use the blades at the base of their tales to slap at each other.