Just caught this reply, thanks for posting.

He's grown a bit though still very active. I made him a little cave under the substrate and he seems to like it a lot. I'll add in some new toys and see how he feels about that.

I've got 46 fuzzies in the freezer courtesy of Cajun Mice, they packed them in bags of 5 for me. Got fed up with Petco because they ran out. Guess frozen mice are that hard to manage. Saved myself a bit of frustration and a bit of money.

Awesome pet.