If these kind of leafs were to be randomly popping up on plant, what is the cause?
I thought it was a mag deficiency, had grower add epsom salts, still randomly will happen. Grower is using Lucas Formula with GH micro and bloom at approx 700ppm on 38 day old plant in hydro. PH is always between 5.5 and 6.0. Room temp 70-75 degrees, 50% humidity, res temps approx 60-65 degrees.