hey all, just wanted to post what I am working on. I have a 400w hps light for it, next step is setting up the ventilation but I am clueless on what to use. I have 2 fans, one is a Hydrofarm brand, 1/25 hp 1,550 rpm, the other is smaller in size, it's also 1/25hp but 3,160 rpm(Dayton brand)...