I just bought a banded coral shrimp today and when I came back to feed him both of his big pitchers were gone and the long things that come off of his head were really short. What happened, could my other fish have done this to him? I have a clown and a Diadema , but they haven't swam near it. I also have two damsels and I know they can be mean, but they are still young and haven't started to pick at the other fish yet. Also they haven't been swimming around him ether. My hawaiian blue spotted puffer has been swimming around him, but I thought hey weren't aggressive. I made sure that the shrimp was still alive and he was, but was barely moving. Is there anything I can do for him?