As long as you have a fan in room circulating air around you should be able to drop those lights atleast 12-18 inches as long as you still have coverage. After you drop lights down hold hand over top of plants, if hand hurts light to low :thumbsup:

the ppm seems good to me. I have a 10 site ebb & grow system that is on it's virgin run in the basement and they are starting week 3 of flower and ppm has been mid to high 80's since switch and ph is floating in the 5.6-6.0 range. Trying to get use to this large size res, 55 gal drum holding 28 gals of water, just a touch of a change from 6 gals :wtf:
tinytoon Reviewed by tinytoon on . MY FIRST DWC-grow log-#18 og kush :wtf:aloha ohana, I'm new to this site and have decided to catalog my grow to help others and myself. I have already learned so much on this site, life has taught me that you can always learn when you stay in the mystic flow with an open mind. So I have grown in dirt for 10 years and I lived on a dirt road in the jungle but now have moved to a regular house. I've always done the same style in dirt and have decided to try ebb&flow and dwc for the first time. I have been blessed with a great Rating: 5