In week 4 of 12/12, 15 plants, 50-55%RH, on a flood table, some affected some not. Temps never above 81 or below 65. Res temp at 65 with a chiller. GH 3 part, tap water, pH, DM Zone, 1.5ml/35gal Physan20, monster bloom 1/2 strength. I have not run over 1000ppm yet as I was battling brown slime...