Yeah, they are monsters. I knew a lady in Maine that had one that took up an entire side of a display tank (180 gallon) no kidding- when you stuck your hand in the water of the tank, the chemicals the Anenome gave off was enough to make you feel like you were being shocked by electricity if she hadn't done a water change in a while. It was CRAZY. SO not only do they eat fish unabashedly, they are some mean players in general in the tank. Mine is very small for that reason...!
:D
Laurie