I complained at Petco several times to no avail about low humidity 45%. I e-mailed headquarters and they wrote back saying they talked to the Mgr. and advised him how to raise the humidity. I went back yesterday (it's been about 3 wks.) They have started using EE so the humidity is up to 55%. I told the guy that's not good enough, he was well aware that it was too low. He misted the tank and it went up to 75%. He knows the problem is the grate on top of the cage letting all the moisture escape, but the Mgr. is supposed to cut a piece of plexiglass to fit and hasn't done it yet. I told him to tell the Mgr. that I was calling headquarters and telling them that he had not done it yet. The guy said good maybe that will get his butt in gear. I'll be checking again in 2 weeks.