I returned this afternoon to find one of my favorite inhabitants, a red linkia starfish to be ripped into 1 piece with three arms and 3 other arms walking around. The only thing I can think of is that my snowflake morey attacked it. The wounds are open and look pretty bad, it doesnt look like any of it was consumed though. I dont know much in depth about starfish regeneration/immune systems. Is there anything I can do to increase the chances of survival for the starfish, if needed I could set up a small hospital tank to accomodate him, I certainly hope I can save him as he was quite difficult to get and is one of my favorites.