Right. I have a 350G for her but wanted to hear some opinions. The other tank mates will be purple, yellow , achilles, powder blue, mustard and fowleri tang. I think Acanthurus dussumieri is more like a Achilles and PB - shape wise?
No, shape wise it's more like the Fowleri tang. As for tank mates, it probably wouldn't have a problem with the other tangs, outside of maybe the Achilles which can be a problem. It can be aggressive but not overly to the point where it's going to attack your other tangs, though it probably will be the leader in the tank.