I didn't know you could own bullsnakes in Colorado cuz they're a native species!!! If you don't mind me asking, where did you acquire him?! I'd love to own one in the future.
That being said, as a fellow CO keeper, I understand the humidity struggles. I tried my bp on aspen when I first got her and found that it made humidity too difficult to control for me. I had a humidity box in her enclosure with damp sphagnum moss, but she hardly ever left it, so I decided to try something more moisture retaining. I definitely don't prefer the ecoearth style shredded husk, had some of the same problems, however when I upgraded my bp's enclosure, I switched her over to the chipped style, it's less fine and more like bark, so it doesn't stick to her food. I like it so far, as she's a bamboo and I think it looks nice and gives a nice contrast to her lighter coloration.
The only thing that gives me pause with the aspen bedding is I've heard that it molds quite quickly when introduced to moisture. So that might be something to keep an eye on if you try it with your bps. Otherwise i say try it, can't hurt, and if you don't like it you can always switch back!
Sent from my SM-G965U using Tapatalk