Finger coral dying

[nrhk]

I have couple of corals..one of them seemed to be dying on me. It was fine till this morning

 

[Tahoe61]

It looks like a Sinularia and like leathers they periodically retract all polyps and shrink up, usually within a couple days it resumes it's previous status.

When trouble shooting coral issues always check water chemistry though.

If it's not better in 4-5 days then get concerned.