Gray Fuzz on Zoas

[DurocShark]

Recently appeared about 4 days ago. One polyp closed up and hasn't reopened. Two others have this gray patch.

Any idea what's going on here? I don't see any signs of pests or anything (aside from the gray patches).

 

[Triggreef]

Looks like it got stung by something. My first guess would be a stunner chalice because everyone has them and they have unusually long sweepers at night. Up to a foot long and then some actually. That's why I removed mine. I'd look for anything that could possibly have sweepers out at night in the area if not that.

Definitely doesn't look like a fungal or bacterial issue imo.

Also acans lobos and torches can reach farther than you think.