I've asked this question several times in a couple of different places but have only had it partially answered. If you ask what is a good criteria for breeding a female, I get told a certain age and one with good weight and sometimes length. Now I've gotten people to tell me what they consider a minimum age and a good length, but nobody will name a figure for a "good" weight. Being that I'm mostly a Colubrid keeper, judging a "good" weight on a naturally thicker bodied species is harder for me and I'd like people's opinions with actual numbers, please! Since maybe my last couple attempts at this question was too broad, the particular snake I'm interested in, is a 3' Mexican Rosy, she's a proven breeder and I don't have an actual age on her but she is between 10 and 14. What weight should she be to consider breeding her? Also, what is everyone's opinion on the age that a female Rosy should be retired, when would you consider one too old? I'm sure that would vary based on individual, but in general. Thank you for any replies!