Easiest way? Buy a digital kitchen scale. Weigh your snake in grams, feed it a prey item 10-15% of the snake's body mass every 5-7 days. It sounds like you're on the right track with the rat pups, though.
BPs hide. A hiding BP is a happy one. As long as he's eating and isn't roaming during the day (BPs are nocturnal) then I would start out with 5-10 minute handling sessions every day or every other day and slowly work up from there.
Reply With Quote