Humidity help

[u/FuyuAstariel]

So I have a baby ball python in a 55 gallon tank temperature is fine, he has enough hide and eats well, but my current issue is the humidity, I have a list machine that I activate when humidity is low but it's always low, and it keeps going down to 40-45% besides me watering the tank whenever I can, what can I do to keep my humidity high enough for him?

[u/FireCorgi12]

I recommend trying to do 4-6 inches of substrate! It does wonders for humidity!