Today I added a cooling fan to my 12g Nano Cube.

I have the standard 24w/no fans version. I call it the first edition. It was simple and only took about 15 Min. I used a 60mm Stealth double ball bearing case fan for a computer (made by Vantec, part # SF6025L). It is rated for 12v DC, 2600 RPM, 12 CFM. I also bought a AC power Supply (nothing fancy, like what you find at Wal Mart). I pulled the power wires for the fan out the the plastic snappy thingy, adjusted the little clip that was attached to the wires and pluged them into the socket on the power supply. real easy. Its seem to be doing the job. Before installation the temp was 81.5 F. Now about an hourand a half later the temp is down to 80.2 F. I only added one fan because I read in here somewhere, that someone added two fans and they over cooled. If I need the other one I'll add it later but for now I'm going with just the one. I pluged the light and the fan into a timer so that they cycle on and off at the same time.