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)

 

[aquarius77]

I have seen people call them hydroids.

 

[xbambamx]

I believe those are featherdusters, hydroids are usually brown and uglier.
http://melevsreef.com/id/tube.html

there ya go, the middle top one, looks just like it IMO.

 

[RicksReefs]

aiptasia anemones.

 

[Travis L. Stevens]

It looks like newly formed Aiptasia to me. In the last picture, if you look close enough, you can see its insides a little bit.

 

[Paintbug]

when you touch them (not by hand please ) do they draw up? if so they could be aiptasia. if they they are probably hydroids, neither of which you want in your tank.