I noticed some type of tube worm attached to my Tooth Coral, expelling a mucus and it was catching some particles from the water. The mucus was acting like a web and the worm would then consume the mucus web it released. It doesnt seem harmful as it's appears to be feeding only on the floating particulate in the water. Does anyone know what kind of worm it is? Or if it's even a worm. Is it harmful? I will try to get pictures of it tonight but it is rather small.