The absolute easiest thing to put holes in sterlite is a soldering wand. We got ours from WalMart for $10.00. Just use it in a well ventilated area.

You might try finding out what the humidity is in the room the snake is in. If that room is very humid or has really poor air exchange it just makes sense that it's going to be extremely difficult to get your sterlite's humidity down to 50 to 60% if the room itself is sitting way higher than that. That's the first thing I'd look at and see if you may need to adjust the room itself or move the snake's tub elsewhere.

Also try going with just newspaper for a few days and see what difference it makes. Depending on how deep your substrate is you might want to turn it over a bit as it makes sense that if it's really deep it could feel dry on top but actually be trapping a fair bit of moisture down deeper.


~~Jo~~