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  1. Hi guys, It's my first grow and I'm in first week of veg, I think ha ha. Basically I'm trying to find out whether my airflow set-up is correct. So here's what I got..... 6 plants in a 1.2 x 1.2 x 2.0m tent, growing in coco under a 600w hps. I have a 4" intake at 187m3/hr or 110cfm and a 5" outtake at 280m3/hr or 164cfm ( i think conversions are correct) Will the above fans provide with correct air exchanges? My temps are currently around 26/27 celsius, humidity is on the floor, the digital meter just has 2 horizontal lines on it which I assume means zero . Struggling to get my head around the airflow and the only examples I can find on the web are for completely different/more advanced set-ups. I've always been a believer that anybody can learn anything - if you can't understand something then it may be because somebody isn't explaining it in the right way. Can anybody give me a quick tutorial that is easy to understand......? Many thanks in advance