I believe humidity can be and is an issue for many, however I would say that ventilation is an even bigger issue. Craig Trumbower is one of the most proficient suboc breeders in the country...and he has his collection in Florida where it is extremely humid and is breeding them like mice. At least, that is what Don Soderberg, Adam Sweetman and Dave katz have told me.
Mike Falcon also does well with them in Florida.
I have about 10 "Bogies" of all ages and morphs and they have all gotten used to the dense, thick humidity here in southeast Houston. A few of them were affected by it. A few of them were not. The ones that were bothered by the humidity all burrowed in the dry aspen to escape it. I found removing the water dish for a few days, adding more bedding, and placing a closed (but perforated) container of rock salt in the enclosure would lower the humidity enough to "introduce" them to it. A fan also helps.
Nearly all have gotten accustomed to it, and I no longer remove any dishes.
Oh yeah, I keep about half of them in a rack, but it is screened on the top. Mine do well in racks as long as it is screened.
Peace out.
Dusty R.

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