So I bought my pewter ghost boy Riddle from a reptile expo in May. He's tiny. Only 69 grams at the time of weighing him when we got home (I need to weigh him again now that it's been a month, but my scale broke, yay). He was a twin hatch, and he's a male to boot, so I didn't think his small size was anything to question. He was a little more triangle shaped than I'm used to but I figured it was because he was young. Breeder that sold him to me was being pulled in about 5 different conversations at once, and I forgot to ask (my bad) so I never got his hatch date (that is going to bug the crap out of me having it incomplete in my records). I emailed the breeder a few days after the show to see if he might have it, and he said he'd lost some paperwork in his move.... that happened in December. that confused me, I assumed at his size Riddle was a 2016 hatchling, but even if he hatched right before the breeder did a move that would put him at around 5 months old at the time. I asked if he knew roughly whether Riddle was a 2015 or 2016 hatchling for clarification, and he stopped responding to my emails.

That doesn't sound quite right to me, especially since this kid has been rounding out quite nicely with only a once a week feeding. Actually fed him every 5 days for the first couple weeks because he just seemed... idk how to describe it, but hallow maybe, like his belly was a bit concave. You can see some of the pictures I posed in this thread when I first bought him. He just took his first f/t rat pup today without hesitation, was eating small-ish adult live mice before, and has been extremely alert for any more food crossing his path between meals, so I know he's not a problem feeder. I know all snakes are different, but this one seems to be sending up red flags for me. I could just be I used to the larger, faster growing females though, so:

Size check. What, in your experience, is the average weight of a reasonably well fed and maintained male ball python at 5 months old?