With those wide open-top enclosures, it can definitely be hard to keep humidity up. That's why I always recommend to people to use a Humid Hide in their enclosures as well as their cool and warm hides. My girl will often hang out in there, even if the humidity in her enclosure is just dandy. She'll peek her little head out and watch from there. Haha. Goofball.
The only downside I can see with this is that you could end up with humidity spikes and drops, rather than a more stable humidity. But, that's some of the challenges with those open top tanks.
A topic I know all too well. My hermit crabs thrive at 90% humidity. Try getting that in an open-top tank in a dry region. Haha.
Love the innovation though. And if your snake doesn't mind, hey, whatever works, right?
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