Help ID this worm pls

[carrera mike]

Help ID this worm pls for a newby. Good, bad? Saw it crawling on the glass, first two pix. last two pix are after I took it out. As you could see, a third of his body is redish. I think thats the head side.

Thanks you!

http://reefcentral.com/gallery/data/500/168147IMG_0330-thumb.jpg

http://reefcentral.com/gallery/data/500/168147IMG_0332-thumb.jpg

http://reefcentral.com/gallery/data/500/168147IMG_0341-smlr-thumb.jpg

http://reefcentral.com/gallery/data/500/168147IMG_0342-thumb.jpg

[Skier1]

Looks like a bristleworm. Most folks agree that these are good and should be left in the tank. Check out the "worm" portion of this site for ids:

http://home2.pacific.net.ph/~sweetyummy42/hitchhikers.html

[Sk8r]

Bristleworm: good guy: hope he multiplies.

[carrera mike]

Thats good news. :) Here's one more pix of him. I guess I should put him back now...

http://reefcentral.com/gallery/data/500/168147IMG_0010smlr.jpg

[coast2coast7390]

they are good in small numbers...they become unsightly in large ones