Can Filter 2600 [5684B] - $55.09 : Hydroponics!, Hydroponics and Hydroponic Systems from Eco Enterprises Getting that one. Gonna be a pretty small scale grow so i think that would work fine. But do i need anything other than a fan for that to work? Or do i just make an exhaust hole and stick it in there with a fan blowing air out of it? Help asap. Wanna order this like now so i can get it by friday.