you can pop pretty much any snake, but still its much safer to go to the vet and have him probe, its really easy to do but if you dont have much exp with them id get a vet to show you it first, mike is right it should be fine for a month depending on how big his last meal was, for example on of mine had to have a mouse once cuz the store had no rats, 1 week later fed another mouse, however normally with the right food its once a month but they would roam there tanks restlessly if they were really really hungry