Segmented Worms
 

I just saw, coming out of my live rock, two segmented worms. There was about one inch sticking out from the live rock that was mostly blue with about one quarter inch of red at the end. Was approximately sixteenth of an inch or better in width. Could this have been some type of bristle worm?

"Bristleworm" seems to get used to describe many worms. From your description, I have no idea what kind of worm that might be.

Moving to the reef forum for you.