Agreed, I need to get a decent picture of the little guy.

But it's not going to happen today: he just ate again, and this time it was a hopper! I really want to give a shout-out to the cool people at The Mouse Factory (no, I'm not associated with them except as a satisfied customer). I asked for their opinion (not that I'm ungrateful for the great advice everyone here has offered) and we spent several minutes on the phone talking about the variables. Finally, I decided to go for hoppers. She was concerned that she'd just sold me a bunch of pinks I might not use, but I told her that was the least of my concerns.

As usual, the product came in a box with dry ice; it's fun to put the remaining pieces in the sink and turn on the water. I removed one mouse, put it in a ziplock bag and immersed that in hot tap water for a half hour. Checking, I saw that the water was cool, so I dumped it and refilled with hot tap water, this time letting the mouse-in-a-bag soak for ten or so minutes.

I grabbed the now defrosted and warm mouse by the scruff with a hemostat, opened the tank and offered it. It was only a half minute or so before I saw a little snake nose poke out of his warm-side hide, and he followed right after the mouse as I drew it across the enclosure. A few inches, and bam! he was on it. I withdrew my hand, resecured the top of his enclosure and left the room. I stuck my head in about fifteen minutes later, and there was no sign of either a snake or a mouse.

OK, this is getting commonplace enough that I'll stop going on about it. But I wanted to share this and thank everyone who has provided advice. While I'm sure there will be new challenges, I feel like I'm getting the basics down.