I have an '09 female that I bought in April and she weighed ~300 or so grams. The old owner said she fed well each week and just had a hard time gaining weight. I weighed her last week and she is only up to 375 grams.

She eats every week without fail, sometimes twice a week, and always digests her food. She poops every few weeks. Is it normal that she only weigh 375 grams? I keep seeing pictures of other '09 snakes that are much bigger. Should I have her fecal matter tested?

Thanks for your time!