Yellow Tang Ok?

[lake.rickenbach]

So I bought a new yellow tang just over a week ago. When I looked at the tank he seems well and eats nori and food. The only question I have is is his belly normal? Here's a picutre,

 

[Spar]

what time of day was the picture taken? they will show an occasional stress marking and or marking when going to sleep

he looks good to me! keep us updated on any other noticeable behavior changes though. swimming funny, white spots, skin abrasions, lack of appetite, etc.