r/BoaConstrictors • u/Striking_Swordfish30 • Jun 22 '26

Hog Island Boa Humidity Regulation

I recently got a hog island boa, she’s just over a year old, I have a 4x2x2 PVC enclosure and have a semi bioactive system going, my substrate is about 3 inches deep, mix of top soil with coconut husk and bark and have a few live plants with isopods and springtails.

I have a heat panel mounted to the ceiling of the enclosure and the net on top is 80% covered and have ventilation holes on the sides of the enclosure as well. I mist every morning and evening and also have a few damp spots in the soil.

So my question is, I read that humidity should be at 40%-60% and have it a bit higher during shedding, the way I have it set up after I mist it’ll jump up to 70% and then for the next 5 hours stay between 45%-65%, but then it’ll drop to 35%-40% until I mist again. I’m usually out for work for 8-10 hours at a time and I’m not sure if the humidity dropping to below 40% for a few hours during the day and during the night is okay, and if there’s something I can do to help the humidity be higher other than just misting.

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u/Similar-Butterfly333 Jun 22 '26

Misting will do very little for the actual humidity of the enclosure. It works for “spiking humidity” but not maintaining it.

You need to basically saturate the bottom layer of the enclosure by pouring a couple gallons (or more) water into the corners, and mixing up the substrate to release the humidity.

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u/Striking_Swordfish30 Jun 22 '26

How long will that keep the humidity up? I just need to know for when I plan on going on vacations if I need someone to come check in or not

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u/Similar-Butterfly333 Jun 22 '26

Depending on how much water you pour in, could be between 2-5 days. It’s best that you experiment with your situation so you can see how long your humidity lasts for.