Did you have to drill a hole in the side to move the air out or was simply just moving the air around enough to cool it?
I have several small holes in the back already, 2 1" holes for misc. power cords, and the two larger holes for the PVC going in and out from the back. I am hoping that is enough to allow the hot air out.
Nice, I had to add a fan to my sump closet as well.
Thanks! Tank is currently holding at 76.7, I hope this does the trick, as the price was right.... FREE!