I did have a 4x4x7 set up going but now my second room off my bedroom is a second living room so in my bedroom I still want to do a sea of green. Would a 4x4x4 be sufficient height with 4 plant per sq foot? I still want to run the 1000 watt and am not sure if the plants (in 2 liters) will get too close to the light as I'm not sure how tall they will get. I will have a lot of ventilation running an air cooled hood with an intake or too with a fan circulating the inside air while one is pulling the hot air away and out of the room. I don't have anymore room for height so If this isn't possible I'm out of luck so any input to make this work, and keep the 1000w would be greatly appreciated.