I thought it was 50-60%...was I wrong? Maybe I was thinking too high...but I did want to try to get it on the high side for right now since he is albino and they have shedding issues and he has been here for a few weeks and hasn't shed yet and it's difficult to tell when an albino is going to shed. But since I am confused about ideal humidity...can someone post humidity ranges again for me? I have sphagnum moss...should I just put some in his enclosure or are you talking about making a shed box? I have a 20 gallon tank.