Well, there is a reason people like ebb and flow and/or flood and drain - And there is a reason people like me will never touch it, haha....

I have had issues in the past where my RDWC would produce a browning, and typically it was when my water res was too low and too much air was getting to the roots. Whats your flood and drain timer at? Is the timer different in veg than it is in bloom?

I'll help you find your problem
low_rdr Reviewed by low_rdr on . Lost in Veg-as I struggle solve this plant problem mystery What is your experience level? 5 years success â?? 5 years dismal failure What type of hydro set-up are you running? Flood and drain for grow and mothers â?? aeroponic clones Your Equipment: A) Type and wattage of lights. 368W LED have same problem with 400HPS. B) Distance from tops? Tried 2 foot to 4 foot C) Reflector type? None D) what are the bulb wattages, kelvin ratings, and schedule? 368W is adjustable tried 24 and 18/6. E) Is there a consistent fresh air supply? Yes. Rating: 5