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Old 01-13-2006, 02:29 AM   #21
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Join Date: Aug 2005
Location: Phoenix
Posts: 70
Alright.....like I said before my temp in my tank has always been 84-85 degrees after my 6 hour lighting cycle.

After 2 days of testing my current fan design (below, these fans are on the back of the canopy right by the open back). My temp has dropped to 79 degrees, I waited 2 days to post because I wanted to be double sure, but I'm very happy with my tank getting down to 79 degrees. My heaters are set at 77 so instead of a 7-8 degree temp rise, I only have a 2 degree temp rise. I'm very happy with this setup. I will leave it with this design until it is no longer effective (maybe during the summer months).
|   400W MH                400W MH   |
| Fan (Out)                Fan (Out) |
|                                    |
|                                    |
|                                    |
| Fan (In)                Fan (In)   |
          120 Gal Tank

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