I run 30 in a 4x8 in 3 gallon pots ... there is many ways to skin the 4x4 cat.
so 15 in each 4x4 ... 16 would fit ( square 3 gallon pots) but I have a 8" duct coming into each side so 15 fits comfortably
I veg for 2 weeks in solo cups, then 1 week in the 3 gallon in the 4x8... aggressively prune , semi lollipop I suppose, goal is to fully fill the space, focusing on large colas for better, larger nugs.
this way I can veg the 2 weeks, in the solo cup, in a separate space and flip into 12/12 constantly.
more plants = less veg time needed... use bigger pots than actually needed, and water less, but just as often.
here is my 4x8 ( sorry for the light) ... each cola will be arm length and fist fat.
day 40 -
Chemdog 91 x aliendawg