Eating Woes! Need Advice...

My male lesser has not eaten since 10/16/20011 and I'm starting to get a little worried. I know it's not that uncommon for males to go off feed during breeding season but I stopped pairing him back in March and he still won't eat. I've tried mice and rats, both f/t and live and he just has no interest in eating. He really hasn't lost all that much weight, he was just shy of 1100 grams when he stopped eating and he's at 894 grams now, but I'm starting to worry. Any advice would be appreciated :D