Sounds like ICH.

Do a google and you will find a billion ways to cure it. Hyposalinty is the
best followed by copper. For both treatments you need to remove the fish
from the tank and QT him in a tank without live rock.

If you are lucky keep the fish feed well and non stressed and he should
fight it off himself. He must have been stressed at the LFS and he got ich.

Good luck!

R






"Chris Gentry" wrote in message
news:gTGXd.110202$4q6.67509@attbi_s01...
Hi,
I have a false percula clownfish that I bought about a week ago. It
appears to be doing fine, and is very active, but just after I bought it,
I
noticed a large white spot on its side. It looks like a large grain of
sugar. I've watched it really close, and it hasn't seemed to grow, and no
others have appeared, so I didn't know if this was ok? Does anyone know
what this might be? Or if I can try to remove it? Thanks -Chris