I tried just storage box lids. Cut down on my evap considerably. Sadly realized with a glass cover, I'll get fog/salt creep so I'd have to like squeegee the plates daily and possibly still face light transmission problems... Reading elsewhere I'm also concerned about how much power one would draw?

Is there an easy method of actually measuring my humidity $ down there? I've been going off my roomate bitching, but he also bitches about everything and can't find the outgoing mail slot and thinks a half onion by bed wards off the flu.