how to estimate the age ofmy ball python

[RetiredJedi]

I had the same question. Got mine from petsmart. I brought her to a reptile specialist. She is definitely underweight. This guy was livid and wanted to march right over to petsmart. They were telling me to feed her 1 pinky a week. The specialist said she should be eating at least 3 pinkies.

I would bump up the size of the prey instead of feeding multiple. Sometimes it's hard enough to get them to eat once let alone multiple times in one feeding. General rule of thumb is 10-15% of the BP body weight or as big as the thickest part of their body.