Well, I did switch my younger BP, Tonks, to the aspen last night to see how she does. I chose her because she's more reactive to her environment than Ana Gwyn, who is happy under her water dish 99% of the time, and I wanted to see a reaction to the bedding.

And I got one! Tonks was weirded out at first, she spent about an hour playing The Floor Is Lava - she stayed up high on her rock and the top of her hides, and would lean over to sniff the aspen, but she didn't want to touch it. The whole thing was pretty funny, actually. But this morning I caught her burrowing in it, so I gave her a bit more to dig in, and now she's all settled down and sleeping on her hide as usual (she's my weirdo who prefers to be out).

I do think I'll try a few more beddings with the BPs before making a final decision, just to see if it helps keep humidity up in the BP tubs. And I would love to do bioactive enclosures someday - finances haven't allowed it but I start a new job next week making more money so I should be able to afford it soon. But I really like the aspen for the bullsnake, even though he's hard to see in it, and he spends hours and hours every day burrowing in it so I know he's happy.