400w hps

my current grow in a 3x3 had four plants that were flowered b/t 12-14in., i had plenty of room and could have very comforably added another 2-4...indica's grow fatter so i'd roll with 6-7 max...sativas are generally taller and skinnier so i'd go 7-8 max...if u go sea of green u can comfortably fit 20 2-gallon grow bags in my 3x3 room

i have grown 9 plants in 3x3 space but it was pretty crammed and the plants suffered, should have gone sog or scrog with this many but just wanted to see how many i could grow in this space and i think 5 will give me enough space and can fim them.