Think second batch taking hit from learning curve. First three plants watered with the too high PH 8.8 tap water before adjusting tap to steady 6-7 PH using citrus acid. The Mimosa Evo affected worst, yellow/brown leaf at bottom spread to upper leaves. Don't think heat from heater or freeze outside window or too close to lights did the damage. The numbers were twice as high as other two, 4000EC 2100ppm that took second flush to bring #s down to around 2.1EC & 1100PPm. Moby Dick #2 also off numbers couple weeks before. The AHaze less affected although noticed speckled white spots of leaves, whether stretch marks or unbalance will watch for. All four plants ten week flowering so will keep the balance learned.