hmmmm...
hmmmm...
10 years ago when I was 1st into the hobby, bristle worms were evil, evil, evil death killing machines of the highest order.
Today people tell me they are good scavengers and to leave them alone.
For me, the jury is still out on that one. I remove any I see, just to be on the safe side, but I have yet to lose anything (that I am aware of) to a bristle worm.
I suppose you could be really mercenary and put in some yellow polyps for a while and see if the worms leave them alone, but I'll probably get flamed for this idea.