ID coral/anemone/other?

[bromion]

Can anyone tell me what these whitish-clear things are to the left of the zoanthids in front?

<a href="http://www.flickr.com/photos/bromion/259389618/" title="Photo Sharing"><img src="http://static.flickr.com/85/259389618_00365d47e5.jpg" width="477" height="500" alt="id2" /></a>
(click to enlarge)

<a href="http://www.flickr.com/photos/bromion/259389615/" title="Photo Sharing"><img src="http://static.flickr.com/92/259389615_1f2b120b6f.jpg" width="382" height="500" alt="id1" /></a>
(click to enlarge)

 

[d0cdave]

I think they are a type of Hydroid which doesnt really narrow it down. I have little clumps of them that came on a zoo rock about a year ago. Mine spread quite well, but havnt caused problems with other corals. Some people have issues with them. I think they are kinda cool.