My tub is really bugging me. It's a 1956 sterilite model (27qt). I set it up with an exo-terra uth covering about 2/3 of the bottom which is hooked to a herpstat 2. When the Herpstats displays 88.9, the acu-rite displayed 95.7 out, and 78.9 in.,and my room is around 70-76 degrees all the time. I melted two rows of holes all the way around the tub and the humidity still was like 78%, so I poked some more holes. I checked my humidity the next day and it was 68%, still on the high side, so I put the water bowl in the coolest corner and turned on my ceiling fan....... Now I checked my temps and humidity 2 hours later, and here is where I got frustrated, High-88.7, Low-77.0, Humidity-48%. Now remember before, when I had only 2 rows of holes, my herpstat was the one displaying the lower number, now I have to kick it up to 95 for the acu-rite to display 90.0. I am starting to believe that I sodered too many holes. What does one do when stuck in this miserable position??