I don't know to be honest. I weigh my snakes weekly just to monitor them but prefer to look at their body condition to decide if they are healthy. Its also difficult as different subspecies grow at different rates. I've had Sylar for 18 months and he is now 230g, whereas I bought Jasmin this year and she weighed 49g but she has grown quickly and is now up to 260g
1.1.0 Arizona mountain king (Sylar and Claire) 0.1.0 Blotched king ( Jasmin) 1.1.0 Guyana red-tail boa (Hercules and Athena) 1.0.1 children (Alfie and BUMP)