First thing you need is proper light for yeild.3 done under 250 hps with room for roots to grow (5 gallon bucket at least). From experience. topping 2-3 times and veg for 6 weeks then flower for 6-8 depending on strain. You can better controll .If you purchase a strain that finishs early .Northern light and power plant can be done in 12 weeks. As well as other indica dominant plants.Some autoflowers will yeild 1 ounce per plant, if grown in the right conditions. In just 60 days.Heres .some autos for example. http://boards.cannabis.com/indoor-gr...s-harvest.html