Welcome. I use a similar tank and since I live in NJ and have to run 3 Che’s in the winter months I use a humidifier with a humidistat to keep the RH just right.. here is a thread on my setup...

https://ball-pythons.net/forums/show...-new-enclosure

hopefully this helps. Also my ambient stays at around 77 year round, hotspot at 92 and RH at 60%. I use 4 jumpstart thermostats, one for the UTH and one for each of the 3 Che’s although only 3 are plugged in during the spring and summer.