i have 6 1000w hps for my flowering room and 2 600 w mh lights for my vegging room my strains that are gonna be in my room is afhgan kush, trainwreck ,lsd , blueberry ,blue mystic, the church, super silver haze, the chronic, cheesel, la confidential, himalaya gold, strawberry haze. . im gonna let them grow to be 2 to 3 ft when i strat to let them flower i have a 7.5 ft x15 and a 8 ft in height ceiling i want to get 20 lbs from my plant its gonna be 40 plants in the room. is it possible that i can get that each time at harvest all dried bud weight . this would be my 3rd grow i just brought all the lights and stuff im using soil also. after this first one start i want to harvest every 2 months want to be pulling at the minimum 15 lbs if anybody can help me i would really appreciate it