I was thinking the same thing, don't you mean 350 gram hatchling? For a retic I would feed 10% of their body weight once a week at minimum, so that would be 35 grams. Take a look at the website at Rodent Pro, that's about the size of a large adult mouse. Hard to believe any retic would still be on mice after a year, even for an SD.

https://secure.rodentpro.com/catalog...el=frozen_mice