Update on sick fish

[pyro]

Just figured I'd send an update out on what happened to my 2 sick fish.
The clownfish with the mysterious white blotches and white specks under the gills cleared up on it's on and the clown looks great now.
The 6-line has niether gotten better or worse. I fear putting it in a quaranteen tank may do more harm than good. It is still eating and such, and its colors a great - overall seems very healthy minus the mystery "flake belly". Any recommendations on this one?
Thanks for all the help!

 

[beth]

I vaguely remember this. What kind of substrate are you using and is this wrasse the burrownig kind?

 

[pyro]

It's aragonite sand from my LFS - not live or anything. It's a six-line wrasse, doesn't seem to "burrow" much, but it does seem to swim throughout the rockwork a lot.
Still has a good apetite and all.