Hi
@Doughboy! I would start to look at the pH, your pH is not acidic enough for hydro/soilless. Try to stick within the 5.5~5.8 pH range or you could get some trouble like nutrients deficiencies/toxicities/lockout. Then, double check your nutrients schedule, did you provide anything in the water? In case you didn't, then buy some hydroponic fertilizer (such as MegaCrop) to add nutrients into your solution. A hydro run must be accompanied by a pH pen, an EC-meter, and a good nutrient line. Happy growing 👊