Help ID for some type of worm/creature

[turk00111]

I am hoping I got a clear enough images.

I found this guy on my rocks today.

It had tentacles coming out of its body.

I know some of the images are not clear, but any help in identifying this little guy is appreciated!



P.s. I do have some bristle-worms in this reef tank.

 

[ISpeakForTheSeas]

Probably a Spaghetti Worm - harmless/beneficial:

Looks like either a hair worm (Cirratulidae) or a spaghetti worm (Terebellide) to me - if the tentacles all come out from a single point, it’s a spaghetti worm; if they come out from basically all over the body it’s a hair worm.