sea of green how many plants?

hi am thinking of doing a SoG sea of green as am limited to space using a grow tent, the room i have is about 4x4 foot by about 6 foot in height.

how many plants can i, or should i do?

Consider using 16oz to 1 litre containers, even plastic soda bottles with the top cut off and some drainage holes cut in them and just do as many as will fit with the containers packed in there as tight.

Veg them only long enough to have them grow thin single colas and not enough to let them branch out. Two weeks max veg to no veg at all, depending on the strain.

The yield can be incredible and the turn around time is fast as can be. I can point you to examples if you like.

I have the same space as you, and I do 36 plants in 1 gallon pots.
Gives me 6 rows by 6 rows, with a little bit of space between plants.