Me too. All of my small fishes and all of my zoas and ricordeas. I have now gotten rid of the worm. Now I can restock. Now actively looking for zoas, ricordeas, and coral gobies and whatnot. If after I restock and the corals and small gobies don't get eaten, I'm pretty sure I have found the culprit.
Here's a worm eating a stunned feeder fish (which I know you've seen and posted before). Talk about role reversal.
http://www.youtube.com/watch?v=tkUSx...eature=related