What's This?

[txjigsaw]

Found it in my tank today. about 3 in long with red stripes.

 

[fishguy83]

that is a really bad pic, hard to tell?
Bristleworm (thread)

 

[fedukeford]

probley bristly worm, fire worm, or some other type of worm, a better pic would help a ton

 

[nm reef]

Try a google search (or search the forums here) for bristle worms and/or peanut worms...looks like it could possibly be either.