New hitchhiker guests? Please help identify!

[H2OMama]

Hello reef friends can anyone help me with the identify please for this week lol? So many surprises! Worms? What is it now? Thank you for your time!!

 

[Tahoe61]

Hydroids.

 

[H2OMama]

Hydroids.

Thank you! I'll be removing that piece! No stingers thanks! Its such a shame because I see so many good creepy crawlies coming out of it as well!