Do you have too many holes drilled in the sides of the tub? I'm assuming you didn't drill the holes in the top of the tub as that would just let the humidity out instantly. Generally drill the holes on the sides down an inch or so and only drill enough until you get the humidity you want. If you look at a lot of the PVC cages, you will notice for the size of the cages, there is very little slits, holes etc. Its about controlling the air flow. Also what I use for my glass tanks is I take 3 sheets of paper towels and fold them up so it makes one thick one. Then I run it under the sink to soak it and let it drip dry the excess water. Then I lay them on top of the hides. That combined with a large water bowl and I can hit 70% in 40g breeders. Personally to me from the size of the tub, you have too much air flow in it, that's why you are having such a hard time.
Oh and this is all assuming you are not using a rack which in that case, you don't need to drill any holes as the small gap between the tub and rack roof will be plenty of air flow.
Reply With Quote