What is my zoa doing? Is this a problem?

[PhilMStudy]

One of my Zoas has a white spore/spike growing out it’s head. Normally these are all open and have been for 2-3 months now.

any help is appreciated

 

[blaxsun]

Not sure, but all the others look healthy - so I wouldn't sweat it.

 

[Reefer Matt]

That looks like a piece of rock or sand stuck in the polyp to me. Try tweezers.