My GG4 Auto has burnt tips and some yellowing on leaves. Just came back from a week and a half trip and RH was 35% and plants were pretty under watered. Is this nute burn? or from underwatering
It's from underwatering. The plant drunk up the water so fast due to the low R/H which means it was intaking nutrient too fast also which causes the burnt tips. My Original Auto Cheese has been doing the same exact thing but it was because of excessive heat. Hopefully, I answered your question and remember Happy Growing and Free your mind one puff at a time.