I have a Hydro Hut mini which is 39" x 39" x 6.5', slightly smaller but similar to your area - I too envisioned many beautiful plants so I started with 12 to account for a few males. Now that they have grown a bit and are ready to flower, I have had to give away 5 of them (all females), build a mother/cloning cab for another, and hang my circulating fan that was on the floor from the roof to make some floor space, and I still barely have room for the 6 left in there. Next time I will only do 4 in the hut, I think 2' x 2' per plant is about right to get maximum yield.

I think I buy into the notion that a few maximized plants will yield more than many cramped, modest yielding ones, since the available light is better utilized.

Thats my take on it anyway!! Good luck to you with your first grow! :thumbsup: