honestly, with my 400 watt (in a 2x5x5 closet) i can get away with using a 4" 170 cfm fan for ventilating my hood, and it creates enough air exchange to keep the plants happy. i think you'll be fine with one. and if you find that you dont need the other fan, you can always expand (get more lights, bigger space,) or return it. itll work out. btw, where do you order your fans from? i usually get everything from hydroponics.net
joedirte Reviewed by joedirte on . ** Will this work?? Come quick, order on the way! ** Im growing in a homebox xs (2x2x4) and im growing buddha white dwarfs (From ) they will be under a 250w hps with a cooltube (from htpsupply?).. Well what im asking is would 1x intake 6'' inline fan pushing 250 CFM (cubic feet per minute), and i have 1x of the same 6'' fans on the cooltube.. Will another 6'' fan of the same one work?? Or would i need more?? Here is the specs of the fan.. And will i need 2x fans for my cooltube (One sucking in and out) or what?? PLEASE HELP ME! Heres specs Rating: 5