I read on some website that their green brittle starfish was a killer. They talked about how his ate some of his shrimp, fish and whatever else he could buy. I can't remember what site it was so I could direct you to it, but I have a green brittle starfish and I have noticed recently that some of my shrimp and fish were missing. I never cought him in the act until this morning when I saw him trying to eat my sandsifting star, who I saved by the way. I had another sandsifting star who I found mysteriously eaten one day, but now I know how that happened. My question is are all green brittle starfish killers/not really reef safe and if that is true are all brittle/serpent starfish not really reef safe either?