Need help with humidity control.

So here's the deal, I'm having trouble keeping the humidity levels in my tank proper, it's an open cage top so everything just escapes, I can't afford a new tank at the moment and I'm sick of misting 10 times a day, I'm using fir substrate with a small heat cable under her hide, and a heat lamp above that(warm side) with her water bowl on the cold side, the heat levels are perfect and I have no problems with that, but if I don't mist her tank every couple of hours, the humidity drops to about 30, I tried laying a damp towel over the top but this brings the humidity up in the 70s and quickly dries up over night, I thought maybe plastic wrap might work ( with ventilation obviously) but wanted some advice before I go all mcguyver on the terrarium. Any suggestions?

I was told that you mist once to bring the humidity to 60-70 then can let it drop during the day to 40/50, then mist the next day and so on... do you have a water bowl in the tank? Have you tried covering the lid with plastic wrap, (still allow air flow though. )

Wait you're using fir for a ball python? Fir last I knew was part of the conifer family with pine. I'd advise against fir because it stands no chance at holding humidity. I ran my tanks before the racks about 40% and left in a sphagnum moss box for added humidity during sheds. I'd switch to aspen and I know a lot of other herpers use Kraft indented paper, newspaper, eco earth etc. Eco earth will hold your humidity very well with an occasional mist.


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Also not sure if fir is toxic like cedar to Bp's?


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Also I meant repti bark lol sorry tired here. Eco earth is the loose stuff I use for the dragons.


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You can tape up the top of your tank with either duct tape or gorilla tape but put some aluminum foil underneath it and cut out a hole for your heat lamp and that should keep in the humidity very well and should significantly reduce the times you have to mist


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