Again, I'm only sharing my limited knowledge and experience, but I do believe you can find a better alternative the leveling the floor. The project really looks great so far. My girlfriend and I are getting ready to embark on a whole house renovation (our house was built in 1891) which will be including a dedicated reptile room. Right now they are all in my spare bedroom kinda where they fit. Can't wait to have an actual reptile room though!! We are converting our two-family home into a single family, so we have plenty of room now! I can't wait!!