I would post a picture but I don't have a camera on hand, it's a very basic set up anyway so maybe just a description would be ok? It's a horizontal tank but fairly tall as it is. It's lined with coco husk substrate approximately 2 inches deep, there is a water bowl, a fake plant with broad leaves that he used to hang out on sometimes, a piece of driftwood, and another fake plant (someday, perhaps, I'll be able to afford a vivarium...). That's pretty much it. I don't have a hydrometer but I mist the tank often, usually at least 2-3 times per day, and even more lately because that's exactly what I heard earlier, that my frog may be burrowing because of low humidity. I've been dutifully keeping the tank moist, but the frog stayed asleep and buried. It's not even the burrowing that concerns me most, more the weird eye stuff and atypical inactivity at night, coupled with the odd reddishness and lack of stool...

As for temperatures...winter is coming here but it's been warmer these past few days than before. The room with the tank is pretty consistently warm no matter what the temperature outside.

Oh, and for drinking and misting water I use spring water, as I have been for the entire period of taking care of this frog.