Sorry for the late responses, I went to sleep shortly after asking

I didn't add any holes in the tubs, the rack is completely unaltered...

I haven't tried Reptile Prime yet, might need to give it a shot if it's better with humidity.

How much do I soak the Repti-Chip? I buy their big block and fill up the bag with water, wait 10 minutes, and then the block disolves into the tub I want it in. Like in their video on how to do 10 blocks in 10 minutes...but with just one of them lol (reference: https://www.youtube.com/watch?v=Ukcauco_YZA )

I never thought of the humid hide, what do you recommend on how I should do it in a rack? Any good guides to follow?