to keep u up to speed got the ph down , cut back to 30 mins on every 4hrs .seemed to have weakened the plants because they started dropping.so i went to a 30 min flood every1.5 hrs. also i found that roots had grown into the flow fitting causing it to retain so water think that was the bigest prob with e&f. cutt the hydrofarms back to 30 minutes on 1.5 hrs off helped alot but not after losing 4 plants.