Tube Help

[crucialambition]

I'm sorry if this is in the wrong section of the forum, I didn't know where this should be properly placed. Can someone please tell me exactly what this is? I just noticed it today and below that rock is another one. It looks like some type of tube worm, not sure exactly what it is. It is on the rock in the center of the photo.

http://i1267.photobucket.com/albums/jj543/italianholmes5/tank/DSCN1820.jpg

[tebstan]

Hard to tell without getting closer, but it kind of looks like a tunicate to me. If it's a tube worm of some sort, you'll see it retract if you poke at it.

[crucialambition]

I have a 3rd one growing now as well. I looked up some information on tunicates and I'm not quite sure if that is what it is. But what do I know? lol. Think maybe it could be a "baby" feather duster?