I use a glass tank with humid hides (dampened moss in hides) but I'm sure my humidity never gets above 60 for long and I have prefect sheds every time. If you can maintain a high level great but just know that you don't have to kill yourself trying to keep it that high. The main thing is giving a boost during a shed. I do this by making sure the moss stats damp while non shed I will let it dry out.