I have 6 plants in FFOF soil. Under 1000w hps. In 5 gallon buckets. My grow space is 8 feet by 8 feet. How high above the tops of the buckets, should I position my screen?
id go ahead and put it at 1.5-2 feet away for adequate air flow under the canopy. But it depends how much height you have to move the lamp. For Scrog http://www.google.fi/imgres?imgurl=http%3A%2F%2Fimg411.imageshack.us%2Fimg411%2F2360%2Fgallery35921314711790.jpg&imgrefurl=http%3A%2F%2Fwww.weedguru.com%2Fforum%2Fviewtopic.php%3Ft%3D26694&h=240&w=320&tbnid=wHTBFwFT_N397M%3A&zoom=1&docid=2eUit6S-zO-SAM&ei=Ylc9VPzkGaP4yQP36ILoCg&tbm=isch&client=firefox-a&ved=0CCwQMygOMA4&iact=rc&uact=3&dur=4566&page=1&start=0&ndsp=17 by setting them to grow around you get use your light to its full advange. also check out vertical grows. hope it was useful