12/12 from sead SoG grow plant spacing q.

How many plants would fit right in a 4x4 tent? I'm using a 600w hps and I plan on using only 3x3 of the tent for grow space. Could I go 4 plants x 4 plants in a 3ftx3ft area with 12/12 from seed? That would be 9inx9in for each bud

That would be feasible if your plants were uniform indicas with one or two main colas and very sparse side growth. Just keep in mind when things are packed in that close humidity control can be an issue and that may lead to powdery mildew. Make sure you have air circulation above & Under the canopy.