Pain in the Anthias

I just rec'd a Dispar Anthias last Thursday. After hours of hiding out, she
finally comes out from time to time to swim around. My problem is with
feeding her.

I've tried mysis (which the pet store said she was eating there), seaweed,
"Frozen Emerald Entree" which is zooplankton and a bunch of greens mixed up
and I've tried flake food. She doesn't seem to care for any of them. I do
see a dip inward in her belly but I can't help to think that maybe she's
eating a little when I'm not looking because she is alive and acting
"normal" after 4 days. I'd feel better if I could see her eat though.

I've done some reading about this fish and understand that they can be a
challenge to coax them to eat. Any of you have any luck or knowledge in
this? Any ideas?

My other fish don't bother the anthias at all. She swims around them
peacefully. She is still a little skittish when I walk by the tank and
hides for a good while after stick my hand in it. She seems to love being
cleaned by my cleaner shrimp. In fact, after they did clean her initially,
she pushes herself on them at all times to the point where they just ignore
her and try to walk away after a while.. It's rather comical.

I see her move around quickly like the other fish when I feed him. I see
him swim up to a piece like she's going to bite, but doesn't. Overall, it
seems like the Anthias is wanting to eat.... but just doesn't.

I appreciate the time.

B