That is incredibly reassuring. I was a bit concerned about how I would get the tank to the 80% I see recommended sometimes. Covering the majority of the screen lid has worked very well so far, at least assuming the Acurite hygrometer is accurate. I see that you are in Gilbert, AZ. I am in the Cottonwood area, near Sedona so very similar climate. I envy people who live in naturally humid climates. We do have a huge fish tank in a relatively small apartment, so I think that helps. Relatives always complain about how humid it is. I guess it will serve a purpose after all.