So this morning I woke up to find that during the night something spilt my fire shrimp in half. I'm not sure what could have done this I have read that star fish can be aggressive and sometimes attack others in the tank. I have a banded brittle star could it possibly kill a shrimp? I don't really have any other inhabitants that a larger that the shrimp. I just want to know if the rest of my inhabitants are safe or if I need to pull out the star.