i don't mean to come off in a mean way but seriously man. don't do it to the fish. you could probably live in a small bathroom but i don't think you would like it very much. you could keep a great dane alive in a small studio apartment but is it fair to the dog?
adam is right, a yellow tang 6 months down the road is probably your best bet if you have to have a tang in there but stay away from the hepatus, powder blues and browns, nasos etc. even though its possible, like keeping a bengal tiger in my basement, its not a smart responsible choice.