Should I change his feed amount?

So I've had Paris since december of last year, and when I got him he was maybe 600g. Now he's pushing 900, and I'm wondering if I should increase or decrease his meals at all. I've been feeding him two adult mice once a week (rats are stupid hard to get where I am), and I don't actually know how old he is because he was a rescue and I didn't get to ask his prior owner a lot of questions, so I don't know if a 300g increase over six months is normal. I've read people saying that bigger prey is better for a snake of his size, but I've also read that overfeeding and snake obesity are common. Any advice?

I think this should help.https://uploads.tapatalk-cdn.com/201...ca90bfb5d8.jpg

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