Hi! My BP hasn't eaten in about 4-5 weeks now and I just wanted to make sure his size was okay for his age.

He's about 1.5 years old and 818 grams. He might be 2.5 ft long? I haven't measured. He eats 3-4 week old rats.
He was around 800 grams last week too so I don't think he's losing weight, but he's just not as round as I'm used to (he used to eat every meal until last June he started going on and off food).

Is this a healthy weight/size and is it ok for him to continue fasting? Not sure how long he's going to keep this up :/ I'm offering him food every week to 10 days or so.

thanks!