Can you ID these?

[DED65]

I have these tubes growing out of the base of a coral. They are maybe a 1/16th of an inch in diameter and close with any movement near them. Thanks!

 

[ScottMyers123]

Looks like some type of sponge to me. I am not 100% sure.

 

[Maritimer]

Vermetid snail/s. More annoying than dangerous.

~Bruce