Honestly, in an area your size, 6 plants, no manifold training, just topped at the 6th node would fill your space out much faster. Would probably ready for flip 4 to 6 weeks from germination. Have done some manifolding, it has a place, but it extends the time needed in vegetation, faster just to fill the area with one more plant. Also, in soil runs, the rule of "above as is below" comes into affect. The size of your root ball directly affects the size and weight of the plant it can support. So your not gonna grow monsters in 1 gallon bags. In soil, running photos, 5 gallon is the smallest bags I'll run. Autos I'll drop that down to 3 gallon. I figure 1 gallon of soil for every month of life.