Selling a very healthy 3.5-4" powder blue tang, nothing wrong with it. Recently introduced a Achilles tang to the tank and they havnt been getting along. (not that i expected them to but ilfigured it was worth a try) To prevent injury I have decided to part ways with the powder blue and give the Achilles a shot. $50 OBO. 248-909-1627 is a good way to get ahold of me or PM. (leave a message if no pickup ) thanks!