Greetings, I've been recently trying different methods to reduce my nutrient solution temps and I stumbled across a solution that is quite interesting. I used PC liquid cooling parts as a radiator through which I continually circulated my solution. Thanks to the second law of thermodynamics , radiators are an effective solution for transferring heat. Plus I figured a CPU was a hell of lot hotter than my reservoir, so it... Res Cooling: PC Liquid Cooling Radiator Hack from Hydroponics / Aeroponics read more