How often do you feed ball pythons?

On normal rotation and not a breeding cycle I feed my bp's once per week with appropriate size prey. At times when they are between prey sizes it can be more difficult to determine. At that time i offer the usual size and 3 days later I offer a smaller size prey = i have a 4 year old bp and i feed him once a month. just try to look at the fattest part of your snake and you should feed him with that size.