A few days ago, I moved Ghost to his new Animal Plastics enclosure with a ProPlastics RHP. Everything looks good in there. The heat has a nice gradient. However, the humidity has remained in the 90s since I moved him there! I have been using cyprus mulch, which worked fine when I had him in the tank with the mesh top, but now won't fall below 90%.

What do you recommend to get the humidity down?

Should I change substrates? Mix substrates? Leave the cyprus mulch bag open to let it dry out a bit? I like the substrate, but it's wet when you open the bag, and has remained wet in the enclosure.

I just don't want any health issues arising because of it. O.o