Clownfish swollen stomach

[blackwagon]

I picked this fish up last week. The stomach seems to be getting bigger and bigger. I haven't seen it poop yet. The store fed it mysis I think, I'm feeding it cyclopeez. Very active fish. It eats fine. I don't see any stress signs.
Any ideas?

you can see it a little bit in this pic but not much

 

[blackwagon]

It was just fat. I didn't feed it for 2 days and it went away.