What do you do about fogging glass?

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Posted by Homer1 on April 22, 2003 at 09:38:16:

In Reply to: What do you do about fogging glass? posted by kyle1745 on April 22, 2003 at 07:34:45:

Yes, moving water features certainly humidify a tank far more than I would have imagined. You'll have to be careful about keeping enough water in the reservoir as well, because evaporation occurs faster than you might think with the waterfall.

I tried that rain-X de-fogger with little success. I now have a PC fan tilted at 30 degree angle into the tank, and it seems to keep all of the glass fog free most of the time, and 2 out of 3 of the glass sides fog free all of the time. What's more, the humidity isn't adversely affected, either (still stays between 85-100% without misting).

I have toyed with designing an "air curtain" to keep all of the glass fog free all of the time. It would consist of a piece of 3/4" PVC running across the top interior of the tank (like a "U") directly above the three sides I want de-fogged all the time. By drilling a small hole every 1/2" in the PVC and connecting that pipe to the fan (via a larger PVC pipe glued to the fan and an adapter to the smaller diameter pipe), it should keep a constant sheet of air running across the glass when the fan is running and thereby preclude fogging.

I haven't had time to build it yet, but I'll let you know when/if I successfully complete this project. The fan is the only successful way I have found to preclude the fog buildup.

Homer

:I just wanted to get some opinions on what every does to keep the glass from fogging up. My 29gal is almost done, but wow does it fog up fast and stay that way. I am going to try my fan that I have been testing for it, we will see.

:What do you guys use?

:Kyle
:

Follow Ups:

What do you do about fogging glass? kyle1745 04/22/03 (10)
- What do you do about fogging glass? Homer1 04/22/03 (0)
- What do you do about fogging glass? rc_racer_007 04/22/03 (8)
  - What do you do about fogging glass? archie 04/22/03 (7)
    - What do you do about fogging glass? kyle1745 04/22/03 (6)
      - What do you do about fogging glass? Homer1 04/22/03 (5)
        
        What do you do about fogging glass? kyle1745 04/22/03 (4)
        
        What do you do about fogging glass? Homer1 04/23/03 (0)
        
        What do you do about fogging glass? rc_racer_007 04/22/03 (2)
        
        What do you do about fogging glass? kyle1745 04/22/03 (1)
        
        What do you do about fogging glass? rc_racer_007 04/22/03 (0)