We are new to reef tanks and have a Clarkii Clown, Black Blenny, Mandarin Goby and Fire Clown along with a clean up crew including a Banded Coral Shrimp and a Red Thorny Sea Star. It all started when we added the African Biscuit Star and found the Red Thorny on top of him eating him. We assumed the Red Thorny had done the deed and killed him and rehomed the Red Thorny to save my Serpant Star. Woke up this morning to my Serpant Star half eaten with no culprit in sight. Could my Blenny be eating my Starfish? He is a vivacious eating but gets fed twice a day with flakes and brine shrimp. Any help in the possibly culprit?