Quante piante in grow box?

If you are set on using 3 gallon pots I would go with four plants. I do not like sea of green (SOG) in a tent if you have plants in front blocking those in back. I like to have access to each plant so if doing four in your tent I would do low stress training (LST) with all your wires in that plant's pot so you can pick them up and take them out for pruning and inspection.

I would go with 2-3 plants. I would lean more towards 2 plants.

2 to 4 depending on strain, and how long you plant to veg. Good luck and happy growing

i need to know the same!!