Atpatsia ? Need to id these!

[Chrisgarrick]

Found 2 of these in my tank. Help with I'd please.
http://i1157.photobucket.com/albums/p600/chrisgarrick/89dceab0.jpg
http://i1157.photobucket.com/albums/p600/chrisgarrick/d359ffad.jpg

 

[jgraz]

I'm never good at this. It's possible. Does it pull into the rock when touched? Does it have a tube that it coming out of, or just coming from the rock?

 

[dnov99]

looks like a harmless feather duster...

 

[Chrisgarrick]

Snaps shut. Fast. Was just over at captivating coral in freehold. Doesn't think it's a problem. Fingers crossed

 

[jpelzer]

Agree with dnov. Duster.

 

[greybolt03]

looks like a harmless feather duster...

+1 not aptasia

 

[Chrisgarrick]

Thanks guys