Local fish store rescue. ID help please.

[Fieryfrog]

Hello all,

I saw this little guy at the local fish store, and really didn't need him. But I couldn't leave it. He looks so very bleached out and neglected.

Could someone please ID this?

 

[Greenreef75]

Looks like a chalice

 

[ReeferNtraining]

Looks like a chalice

Ditto
You probably won’t know what kind or his true color until he recovers a bit

 

[Greenreef75]

Low light and low flow should help it recover