Quote Originally Posted by khyberkitsune
You should be able to squeeze 12 in there if you left the center 2x2 area semi-clear for the light.

I wouldn't switch bulbs, especially since those that do switch in the last two weeks of flowering switch from HPS to MH, not the other way around.

Going vertical, you should expect well more than 4 oz per plant.
I'm going to transplant my plants, I'm going to start my seedling in 1 quart pots then transplant them to 1 gallon pots, and then to the final 4.75 gallon square pots. The final pots are 12"x12" so I will have exactly 2'x2' of space in the middle for the light. I'm just worried the plants will get too bushy which will result in less space in the middle for the light. As for the bulb I was just thinking of the idea. I doubt I will switch em. I will go with MH all the way. Since I will transplant, do I need to add nutes to the water while the plants are in the 1 quart and 1 gallon pots during veg since the FFOF soil has nutes already?