I bought a few frags over the weekend and was watching the tank to see how they were doing. In the corner of my eye, I noticed something crawling. I know the difference between a bristle worm and this is definitely a bobbit worm. It had 5 prongs coming out of its mouth and retracted as fast as a rubber band when I got too close. I want to dip the rock/acan its living in but the acan has encrusted all over the rock. I read the dip will be absorbed by the rock. What’s the best route to get rid of this worm?? Thanks!!