what are these?

[ladyfsu]

I bought a few pounds of live rock today from Aquatic Visions. What are these? This little rock has 5-6 of these...are they Christmas tree worms? They aren't open very far in the pic...somehow they seem to know when the camera is coming. w/e worm they are...will my fish eat them?

ok this one...NOT the purple thing in the middle but the other 3 things near it.

thx...and I bought a feather duster...will my goby try to eat him? I just love inverts!!! Thx.

 

[mattliu]

serpulid worms...they usually die in captivity unless you have them living on a healthy piece of porites