Hey, I am doing a DWC in 5 gall bucket and my plant is making new roots every day very strong and big.. the new roots are white but they are turning brown in the nutes in this normal? And I am constantly adding PH lower 1 to 2 times a day to keep it at 5.5....
Its probably not getting enough oxygen, I don't know too much about DWC systems but maybe add another airstone. If its growing fine and not showing any deficiencies then don't worry about it.