I have looked under every stone, shaken every bush I can think of, and spent the last three days trying to add another fan to my 14g biocube hood, it's worn me out, and my wife's about ready to divorce me over it! I have an additional fan that came out of a PC power supply, but there's no way to power it. When I hook it to one of the stock fans it blows beautiful cool air! It also cuts the stock fan's RPM's by at least 1/3 which is pretty much self defeating. Does anyone know of a source for mini fans with their own power supply? I swear I saw one on youtube, retrofitting a biocube hood, but I'm danged if I can find the vid now. I can't afford to go to LED's and I sure am not going to put a chiller on it, and the hood has to stay on for now. I'm about ready to tear the whole thing down and toss it in the trash. African cichlids are looking better all the time. I just can't get the temps to stay below 85 if I have the lights on for more than 3 hours and I sure can't afford to keep the house at 70 degrees.