does anyone know how exactly you would rig up say two computer fans to blow on my aquarium? there is the very large problem with doing this of a 120V (in the US) AC current outlet and the fans run on 12v DC current. I have the same problem as the original person who posted, and i want to get these fans going, but i dont know how to rig it up. Although it would be easy, i dont want to run it on batteries, it would be too expensive to replace them all the time.