So with out the carbon srubber on the temps are at 85.6. I moved the fan down to the botom pointing upward and the temps went up to 85.8 to 86.5. WTF am I doing wrong??? Where can I get a good (cheao) exhaust fan from (online)? My exhaust fan moves 240cfm and it's still not enough I thought it would be for the space in the box. Could it be there is not enought air coming in? I need all the help i can get.. Will the plants be ok in 85 to 87 temps?