Weight for age/length and prey item size

[Spirit_Scale]

I finally got an accurate weight on Ihsyius at the vet---he's 760 g.

He's about a year n a half and 2.5 feet or so---is he underweight? Obviously a store isn't really wanting to grow their animals vs maintaining them, so when I got him he was being fed f/t small rats. Looking around and doing more research it seems like he should be on medium rats.
Right now he's getting 1 small rat a week (there was two weanlings in the bag -_- so for one week he got two weanlings to make up the difference).
The reptile breeder's expo in toronto is coming up mid-september and if he should be upgraded then for sure I'll get a big bag of frozen medium rats. Should I maybe offer two small rats a week till then just so I can use up what I have?

His spine doesn't poke out dramatically but you can still feel it pretty good.

Sorry for the newbie questions guys---I did your basic research but there's some stuff that's hard to find info on.

[PorcelainxDoll]

Small rats are appropriate for his size. About 900+ is the medium rat range.
He seems like a perfectly normal weight

Sent from my LS670 using Tapatalk 2

[AK907]

Pics would help greatly in determining proper body weight. Males do tend to be lankier than females and a small adult rat would be an appropriated sized meal for a 760g male.