nah its just that little section there im doin, im not goin to seal up the back were the fan is, so i dont think ill need an exhaust fan? but im gonna add more cfls, probly like 2 or 3. im still waiting on net pots that i ordered fukin ages ago haha. i had a plant in soil under that light in there and it bent over then i put it outside and it shrivled and died, went really dark green when it shrivled. could that be heat stress? cos i had cardboard surrounding the 2 open sides?