is this ick ?

[anglecoral]

I assume it is. I only see this on his tail and none of the other fish have it "yet"

 

[RegalAngel]

Do a search for "Lymphocystis"
http://reefcentral.com/forums/showthread.php?t=1797931&highlight=lymphocystis

 

[LisaD]

I agree, it is Lymphocystis. Watch water quality and nutrition, it should get better.