I keep my basking spots at 120 degrees, I use huge artificial aquarium trees and rocks that are easy enough for my Savannah monitor to climb. The only reason I don't use real wood and rocks is because it cuts down on the chance that I will get mites. I have had a mite free house for the past 6 years and plan on keeping it that way. Honestly, the last time I had mites was because of a real log that I bought from a pet store, not any of my animals.