Quote Originally Posted by HungryMcNasty
i have been using a 4 1/2" 12 volt computer fan and i was told that it is not good enough for my growbox which is 4'x2'x2'.today at HD i found a in-duct fan that is 6".it is 250cfm.do yall think i should get that.would it be too powerful or too loud because my growing has to be super stealth.thanks a lot
The more airflow, the better... almost usually always...

As for stealthness... well, you've got to work with that...