Well I have two serpent starfish one red and the other yellow. They are both about 14 years old and have been great. The yellow one I noticed a few weeks ago look like it was sliced open by one of the arms and the inside was visible. Today I woke up to find one of the arms completely off! It was still moving so I left it in but now noticed it is not. I'm assuming I should remove but what are the chances that the starfish itself will heal or is this the beginning of the end?