I just wanted to get some people's opinion before I went ahead I did it. Would a 2'x4' tent be enough space for 5 plants to grow in? Or should I go for a 4'x4'? In the tent I am planning on using a Pro-Grow 400 if that matters at all.
I would say 2 plants in 5 gallon pots. I have a 2x2x5 with one plant in a 5 gallon and it is packed. You could grow that many plants but you would want to keep them in small pots.