He's in a 40 gallon Critter Cage. He's got plenty of room, but he'll be out of quarantine soon and I'll probably put the royal in the glass tank for a bit and Wallace in the Pro-Line. In the spring or summer I'm getting a Monster Cage that will spec out at 6 feet by 30 inches deep and 2 to 3 feet tall.
I'll deck it out like my others though it will be a lot more work.
Wallace is still about 3 to 3.5 feet. I can't set him on the floor though, he'll cruise if I do. He's lightning fast and small and if I'm fully paying attention, he's easy to disappear. I think once he get's a bit more size on him he'll be easier to deal with.