Help me save my Duncan!

[CleverBs]

I have a Duncan that was 3 heads but 2 of the heads were eaten by an emerald crab and after the crab attacked the remaining head no longer opens. I haven't seen the head open in about 2 weeks and I cannot feed it and nothing I do makes it happy. What can I do to save my coral?

 

[Sev7nseas]

Take the crab out,I'm sure that's not going to save your coral but at least you won't lose anymore

 

[CleverBs]

the crab was removed as he was doing it...I woke up in the morning and saw him in the act and pulled him off the coral.

 

[Sev7nseas]

Nice,glad you could.