He handled the large mouse really well (he's handled each increase in size well actually). After this large mouse, he hid away for a couple days, but last night, I found him out on the warmer side of the tank hanging out. He seems really content.
I've been buying my frozen mice from the local pet smart, but they only have rats that are obviously quite a bit larger than the large mouse.
Is there an online retailer that you'd recommend?