I feed my male one medium rat a week, however he'd happily eat as many as he could every day.

At the pet store I got him from they were feeding him 2 jumbo mice a feeding, but they were still small for him. When I first got him he was 575 grams. I meant to weigh him again but I just fed him yesterday. The rats are about 100g each and he is always looking for more.

I usually feed every 7 days but sometimes it's every 6 days.