Help identify whats wrong with my fish!

[windcoast reefs]

Hey guys,

Just noticed today that my christmas wrasse has some scales that appear to be white. This look almost raised, any ideas? He is eating really well and still going after every snail in the tank!

[IMG][/IMG]

Also My blue tang has a brown patch on her underside, just kinda showed up last week, again does seem to be effecting her at all, still eating fine.

[IMG][/IMG]

Excuse the white specks (they are sand in the water column) it is just a cell phone photo!

Thanks