hey guys, can you look at my diagram and tell me if my math is ok, using a 4inch 175 cfm fan/4 inch ducting, and a 600 watt hid the tent in question is 5x5x6.5
I know i'd be safe with a 6 inch, but i already have a 4 inch,id like to utilize what i got
also, for a passive intake, is 4 inch out 4...