You going to do soil? You may be able to setup something hydro or DWC (aeroponics) that would be built custom to the size of your area and fill more area with more plants? What is your reasoning for sog? You want to do multi strains? It is all how you want to grow, you could do two plants and scrog....basically top, fim, lst and put down a scrog net so they wont grow so high and fill up that area. I grow in a 2'x4'x8 area. The 400 works best in a 3 x 3 area so I really utilize 2'x3' area and try not to go over 3' tall as the light doesn't penetrate the lower parts. I have done 2-6 plants in that area....6 being to much, 4 being almost to much.....but I found the plants seem to know how much light and space they get so my 6 didn't yield as much per plant as 4 per plant or 3 per plant but in the end they all ended up filling in that space and yielding about the same total amount of bud. I am now down to 2 and top, lst and scrog (or not) but have bushier plants with more of an even wider canopy. So it is all what your trying to accomplish. I rather not work with multiple plants and to many different strains since I am in a limited area.
