I recently bought this lil fan off ebay. The fan is a lil noisy not lie a bus engine loud. It does a great job. Lately my tank has been getting up to 83. So the first part of my experiment was to let my temp get up to what it has been getting up to, then i turn my fan on and leave the light on til i get home. my temp went from 83 to 78 in 6 hours. in theory on a 100 gallon you should be able to keep the temp stable before the lights come on and keep up with the temp with lights on. maybe a 2 to 3 temp difference. just my thoughts
nice fan... here a link if anyone wants to see what it loos like... http://www.aquacave.com/jbj-c-breeze-ai ... -2627.html JBJ C-Breeze Adjustable Air Blower. Need to drop 3-5 degrees without wanting to purchase a chiller? The C-BREEZE Adjustable Clamp-On Air Blower is the answer for nano aquariums that require 3-5 degree drops in temperature. This innovative centrifugal fan quietly cools with a powerful wide mouth stream of air to speed up evaporative cooling. ADVANCED FEATURES Versatile Design Simply adjust the 3 screws on the bracket and adjust the the head, arm, and base to fit any desired application. The flexibility of this small air blower is endless! Fits on the rear the portion of the 28g Nano Cube HQI. Quiet but Powerful The C-BREEZE draws air in through the slotted side vent and exhausts 20 CFM of powerful air flow right where you direct it. The centrifugal fan design creates 3000 RPM ( Rotations Per Minute), while only producing 44dBA noise level. Utilizes a child safe 12Volt transformer, very safe to use around water.
I too use this fan on my 24 galln Aqua-pod. NSA has one on their little display tank up front. You cannot really notice the noise in their shop due to all of the background noise. It does work very well though.
