Hi. I think it seems like a healthy weight. A picture would help I feel all mine that are under 500 g's every 5 days. If they are hungry might as well feed them right? Besides there will come a time when they don't want to eat. It's nice to have them nice and plump when that time comes.

I feed rats because it's easier. It would take forever to feed my 2000 g girl 10 mice. Lol. I find it the younger they are when you switch to mice, the easier it is. But, that's just me.

Do what works for you. And, good luck!