So I picked up a new starfish over the weekend and the next day poor little guy was missing a leg. So I got to watching the tank to see if anyone was picking on him. No sign of anyone messing with him during the day so I started checking on the tank at night only to find I have some humongous bristle worms in the tank that I have never seen before. I managed to capture two bristle worms about 8 to 10 inches long chomping away on the poor starfish in the middle of the night. I disposed of the two came back to the tank only to find another one stretching his head out of a rock to grab what was left of the starfish. I couldn't catch it but I got to tell you that bad boy was intimidating and I'm ready to throw all the rock either out or in the sump and start over. Poor little starfish didn't make it.