Id this worm

[cashout]

I bought a huge Xenia coral on a big live rock and i found these clearish white
stringy looking things that pop out of a tube in the rock please tell me if this worm or whatever it is is reef safe thank you



here is a pic

http://s793.photobucket.com/user/il...-0b4fd34789eb_zps3bdeb6f8.jpg.html?sort=3&o=1

 

[cashout]

 

[Betta132]

Can you get a better picture?
Do they do anything? Do they move? React to stuff?

 

[cashout]

yes they move and come out little tubes like feather dusters

 

[ecniVince]

Do these things do circles in the hard tunes when they come out? Kinda like a radar turning in circles?

 

[Speedoking]

I found this thread searching as I have the same worm. And to answer your question yes they do turn circles while extended. Sorry to hi-jack this thread