Coral dying?

Hello
My dad moved my corals around without telling me. Is this coral dead or dying?

 

I cant even tell what it is? Looks like a skeleton, what kind of coral was it?

 

It was a acan. I think.

 

If thats an acan, yes it's dead can you see any flesh left on the skeleton at all?

 

Nope.

 

kinda hard to tell from that angle can u get another mabe top down or at a higher angle.

 

If you look real close, your able to see some brown.