Yeah I have been tryinghis normal mice but he on't want them and I tried to switch to small rats to no avail! Like I said i have tried everything I could think of f/t, live, the brain juice thing, just leaving the mouse in with him and covering for awhile and still nothing. I am not sure if he is losing weight but I am gonna start weighing every week to see if he is losing weight. Don't they lose weight not eating at all?? Like maybe a gram a wekk or something?? Should I not be worried unless he is losing weight rapidly?? Thanks for the post!