ok well you should definitely try to get him to eat each week. There will be times when a snake just doesnt feel like eating and so they go a week and in some cases much longer before they eat again. But like I said earlier a mouser needs to eat more often. If you are feeding 2 mice at each feeding then I would say do that on a weekly basis but if you feed him one mouse at a time then try feeding him on a 3-4 day basis...