Hi everyone! I have a problem with my plants in the 5 week growing stage. The environment is 600 hps lamp and temp is 22-27 celsius in the grow room. Use soil 14liter pot and i add 500-600ml water/plant two or three days with 6.2-6.3 ph and ec is 900-1000ppm. I dont know why curling the leaf and why yellow the new sprout. Yesterday i added epsom salt and calcium to my plants. The last week i add just one time ph water with superthrive that dry the soil. Is this zinc or iron, sulphur or maybe nitrogen and basic nutrient definiency? Or just underwatering? Have i magnesium and calcium definiency? Thanks in advance!