Many people ask this question, and the truth is, that there really isn't a 'good' answer for it.
All snakes grow at a different rate, all are unique.
Hopefully by 2 years old, he's over 2ft long and at least 500g, but many people have much larger snakes than that at 2 years old.
You really can't say.
Some people aim for breeding weight by 2 years. So between 1000-2000g.
i just wanted to know if he was at a healthy weight and size.