This might be a dumb question but where do you guys hang your humidity Gage, I had mine I'm about halfway between the top and bottom of the tank and I was reading about 50% but last night my BP knocked it over and since it's been on the ground it's read about is 70% humidity now. So where should have the reader? Should I aim for a ambient humidity of 50% or ground level humidity at 50%. I know too high of a humidity can cause respiratory infections