My BP is 7 months old. I've had him for about 2 months now. I did not weigh him the first month I had him but he was a little on the skinny side. After his first shed I had weighed him in at 263 grams. I could see that he has definitely put some weight on(looks healthier now) He has just finished his second shed and was fed on Tuesday. I'm going to weigh him today. What would be a good gain for him. The pet shop was feeding him 2 fuzzies a week. I started him on adult mice as soon as I got him and he loves to eat .