Couple questions about size and weight of a your BP and feeding frequency.

[BHReptiles]

I have asked a few of these before, but I just want to get another opinion with possibly more information. My ball python is 3 to 3.5 months old, I'm not exactly sure. I have had him since about june 20th, but he was bought at a pet store so I can't be sure of the age exactly. He has grown from 85 grams on june 26th of this year to 155 grams after a big poop today. Would this be considered a slow, fast, or average rate of growth for his age? Also I bought a bag of mice that are a little too small for him, they are between 15-18 grams each, how often should I feed these since they are a little too small? Would twice a week or 2 at once if he will take them be safe and not overfeeding? Also how much should the amount I feed these small mice increase as he grows?

Every ball python grows at a different speed so it's hard to say. It sounds good. When feeding, you're supposed to feed 10-15% of their body weight every 4-5 days...so a 15g mouse every 4-5 days is perfect for him. No need to feed anything larger.