I guess I keep thinking of your 90 day mother plants. So let me revise, I would still do 3 gal but 2 would be fine esp with a 4 week veg for sure and only 12 plants in a 6x6??? I olny did nine this round but I was lookin at mine today and I could get 16 in my 5x5....I would do at least 16 in your tent esp with only a 4 week veg...From my research it seems the prefered is 1gal per month its in the pot...4 week veg 8 week flower 3 gal...I started mine in 9oz cups, went to 2 then 3 before flower...was going to try 5 but man thats a lot of soil to buy...not sure if its worth it.
I had come to the conclusion based on my grows that I would yeild more with the plants spread apart but, now I went back and looked I had 8 in my 4x4, had 9 but one was a male, got 1.17# dry all in 2gal smart pots the whole way and after lookin at SG15s grow he has 9 stacked and he got almost 2#....I am wasting money with that 1k in my 5x5 cause I have so much unused room so Im going for 16 this next round...
I keep records so I can improve my results each time but mostly I want quality...so If I can get this leaf thing figured out Ill be a happy camper...lol