What’s my Zoa doing

[Falconquick]

I saw these strings last night not sure which purpose they server. Any information would be appreciated.

 

[jmags080307]

If you're talking about the white things i circled those are hydroids. They are filter feeders and may bother corals. Not sure how to get rid of them.

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[Falconquick]

Yes those. They were coming out of the center of the Zoa. Gone this morning.

 

[Mark_C]

They're almost like tiny tube worms. They extend the stalks to feed. Had them in a coral heavy tank for years but they were never an issue. They'd always come out when i fed the corals.