Help! Ick? Fungus?

I know the pic is crappy, but he won't stay still.

Recent Events - 15 gal water change yesterday, and I rinsed out the crap from the bottom of the sump.

Added two new fish thursday night, sixline wrasse & sand sifting goby. Both show no signs of disease or stess as they are small and stay out of the way.

In addition, there is no conflict between any fish, other than an occasional reminder from the yellow tang to the scopas tang of who the boss is.


Thanks

SuperXdude