Just hooked up my holmes HM485 U-2 ultrasonic humidifier to my 2 (2x2x4) cages. I used the pvc method over the pool tube method and am very happy. I have 1 male and 1 female blue on blue Ambanjas and they both went under the mist the first time it came on. I tested the time and found that 2 hours on high brings up the humidity greatly and wets down the appropriate portion of the cage. I then have it off for 2 hours for drying up. I start at 10:00 am and finish at 8:00 pm, 2 on and 2 off. Seem to be having trouble posting any pictures. If anyone can help, I would appreciate it. I will try and get some pictures posted as soon as possible.