How many times have you hears someone talk about having nearly saturated humidity in a green tree python cage? Perhaps even using one inch of water in the bottom of the cage as the substrate? I’ve heard this from several folks who aren’t chondro keepers, so at some point this notion got started and it remains the prevailing theory.
When I first got into chondros, I would watch the humidity like a hawk. I never used water as a substrate, but I would spray all my cages down with a misting bottle and make sure they stayed humid for at least 12 hours a day. Now, having kept chondros for 10 years, I only spray them down once or twice a week unless they are in a shed cycle. When I see that they are about to shed, having gone opaque and then cleared up again, I will begin misting them every day until they shed completely. But that is all the spraying they get. I use newspaper substrate exclusively, and 80-90% of the time their cages are bone dry.
If you ever get the chance to see actual field photos of chondros in the wild, lots of their habitat is scrub brush and arid, where they may get rained on every day, but when it isn’t raining the humidity is actually quite low. Spraying them down from time to time has great health benefits, but keeping their cages wet or near 100% humidity all the time is begging for health problems.