Bristle worm or star fish?

[onetootreefor]

I noticed some zoa frags were closed and acting funny so I was moving them around and found a cluster of what I thought were bristle worms...they seemed stunned and I was able to snag a few with some tweezers.
When I got them out they looked more like star fish with a circular center in which al the bristly legs came off ...I tried to take a picture and this is the best I could do.

I know I have more of these pests and if you know what they are how do I get rid of them?

 

[3lusive]

Micro Brittles , keep them !!

 

[robandoban]

They aren't bad. Once they get bigger they're a decent part of a clean up crew.

 

[shred5]

Small brittle stars = good..
Put them back...

 

[Oscaror]

Little brittle stars. Good clean up crew members and cute little guys!

 

[Scubafrog]

+1 on keeping and what everyone else said.