I am not sure if there is a thread on this, but here goes. I am looking for a way to cool a 92 gallon corner reef tank. I had two of the Coralife 4 3/4" fans in the canopy. I cannot seem to find them anywhere to buy, because mine finally went bad a few weeks ago. I cannot afford a chiller. I am wondering if I can hook up pc fans. I have seen a guy on the net do that, but there were no instructions on how to do it or what kind of things needed. Thanks guys.