You should try and switch your 1100g girl over to rats and move her to a once a week feeding of a single size appropriate meal, a small rat. Otherwise you are going to be feeding lots of mice and it will cost a lot more. I feed my 433g girl a weaned rat once a week and she does fine. Unless you are planning on breeding, I would just go with a small rat once a week for both. If your female turns out to be a big girl, maybe a small medium rat but your boy should be fine on small rats. I have never really seen an obese ball python. I have seen an obese boa as my BCI is kind of chunky so ive actually dropped her down to a medium rat every 2 weeks and shes 5-6ft long. Boas get fat easy though![]()