Hi guys, yesterday I picked up a female Motley Columbian Red Tail Boa from a pet store, she is about 6 months old and she is still very very small, I would say not much bigger than a hatchling. Anyone have any idea if this is normal? This is my first boa so I am unsure, but everything I'm reading says she should be 3-4 feet by the time she hits a year. She came with a feeding chart, I will include pictures of both her and her feeding chart. They were feeding her mice also, not sure if that makes a difference.
snake: https://i.imgur.com/pIwyN0z.jpg
feeding chart: https://i.imgur.com/rjUBynM.jpg