Quote Originally Posted by Dork-Fish
In the past I have bought liverock and had bristleworms. I just moved and I'm going to be buying more liverock again. How can make sure that I don't get more hitch-hikers when I pick more up? And is there a way to get rid of them on the liverock in my tank right now? I don't really want to get rid of it and start over.
There is no way to ensure not getting hitchhikers on Live Rock.

Anything you could do to the live rock to get rid of hitchhikers would also kill everything that makes the rock live.

Bristle worms are not bad for a reef tank. Most are in fact good and there are some things that will eat them. Arrow Crabs eat them but are not good for a reef. There are a few species of fish that eat bristle worms and are reef safe.

I have a bunch of bristle worms in my tanks. They don't hurt anything. Fire worms on the other hand are nasty little critters.

Most hitch hikers on LR are good except for Gorilla Crabs and Mantis shrimp.