Black around zoanthid and closed

[Jblank44]

Why is just this polyp closed? He was fine yesterday and he is opening a bit the kinda closing a little, it's on and off but hasn't opened up. Nothing seems to be bothering him. All I see is a little black around it but that's on all of them. And the others are fine... Maybe it's something? Do they close up some times?

 

[Jblank44]

Any thoughts?

 

[Jblank44]

This is how it was right before the lights went out. (I am acclimating a MH fixture to the tank so that why they are already off. It's on it's 3rd day)

 

[NyReefNoob]

try blowing it off wit ha turkey blaster

 

[Jblank44]

try blowing it off wit ha turkey blaster

That won't harm the Zoo?