Looking to find out exactly what size grow box I need to build for my set up... I'm using cfls, I'd like to grow 3 plants at a time, have decent yields 3 to 6 oz a harvest maybe, I dunno it's my firat time indoors, I once got 14oz from a monster I grew outdoors... alright back to the topic, indoor cfl, decent yeilds, in a dark cool dirt floor basement, temp won't be a problem constant 70° down there, what size box will I need, how many lumens a square foot, and what kind of ventilation should I have down there, will the semi stale air be ok, or do I need to bring in air from outside? And what size pots will I need for 4 to 5 ft plants? And one more thing the best cost effective growing medium to use? Thanks ahead, if there are anything I left out please feel free to add... #determined