I baught a pair of banded coral shrimp about 9 days ago. Last night I was checking out my tank, and the 2 shrimp came out like always. The coral shrimp share the same section of live rock on one side of the tank, and my 2 peperments share some live rock on the other side of the tank. My bigger coral shrimp is now missing his whole pincher limb (looks like it was takin off at his body). Do you guys think this was do to a lost battle?