I've had mine for 8 years now. The tank is 120gal and the top is open but its never tried to escape (knock on wood). The only fish its eaten was a 3" canary wrasse (Halichoeres chrysus) which was the smallest fish I've kept with it in recent years. At nearly 2'-6" long its quite strong and will occasionally knock over a small rock or coral so I need to keep a good eye on things. Every second day it will eat 2 smelts or 5 silversides or about a dozen krill. Occasionally it also likes raw grocery store clam or mussel.
