Need ID

[Orion]

What is this? Sorry for the blurry pic. I have to zoom in on my phone in order to see it.

 

 

It will retract quickly if I go near it, and gets really angry if you accidentally put kalk paste on it. Oops.

 

[Coral Hind]

I can't really tell, maybe a feather duster tube worm.

[Sugar Magnolia]

Can't really tell from that pic.

[wade]

Looks like a sabellidae: a feather duster type worm.  They are pretty common on live rock and many are red/brown banded like this one.