My snake has been cruising his cage and being more aggressive when opening the tank lately. This used to start 5-6 days after the last feeding. Last two weeks its like 3 days after eating day.

I think I recall seeing posts on here that say to feed 10% body weight, so that tells me I need to bump up. he is around 500 grams and the rats I get are about 40 grams. However the next size up for rats at the pet store is way to big for him. Not sure of weight, but going by size.

So then my question becomes, how do I go about feeding him more. I'm thinking, feed him the small rat he usually gets then give him a mouse I think they are around 20 grams maybe.

How do I do this? Let him eat the rat, then offer the mouse? Should I feed the rat one day and the mouse the next? Will he get pissy if I mix rats/mice? Or maybe I should just feed more often till he's big enough for the next size up.