Hello rollitup! I return with a beautiful grow planned. Im building a grow box that will be 4 ft deep by 5-6 ft wide by 8 ft tall. I will be using a 1000w HPS Cooltube or regular HPS. I was thinking 100 CFM for an intake fan, can i just have a 6" inline fan exhausting with a carbon filter or do i need a stronger one? Ill be flowering 6 AK-47 soil plants in here, i hope it will be enough room. Do you guys have any suggestions on ventilation/lighting/space? I will also be building a veg box for my other 6 plants, but thats not the current issue 
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