What if you were to grow all the plants in that 4 x 4ft space in a flat bed of soil, rather than pots?

Or use square pots instead of round ones?

I bet you could crap 20 small indica plants in that space, maybe a few more if you were to SCrog it.

imp:
Nochowderforyou Reviewed by Nochowderforyou on . 4'x4' Grow Room Suggestions How many primarily indica plants would you cram into a 4'x4' growroom with a 1000 watt HID? Rating: 5