can anyone ID these

[spscrazy]

hydroidmaybe001.jpg picture by tina3156 - Photobucket

these came in with some frags I got today. they are maybe 1/4" long they have a feather duster like head but pulse and have the ability to move kinda like a earthworm. are they a form of hydroid or maybe xenia? to kill or not to kill is the question!

 

[shred5]

Look like small feather dusters.. Can you get a closer pic. Are they feathery or stringy at the end where they crown out? If not feathery they could be spagetti worms.

Dave Polzin

 

[Troylee]

Looks like hydroids but really hard to tell from the Pic... When in doubt kill them lol...

 

[spscrazy]

I thought they might be feather dusters at first since the color on the feather part was similar but they pulse. I've never had a featherduster pulse are there any that do? I was worried they might be a type of hydroid