Hello, This is my first grow with BioBizz All-mix supstrate. I't supposed to have nutrients for the first 3-4 weeks. I'm growing under 600 W HPS, having day temp at 26°C, night at 20°C. Humidity is from 45 - 70% depeds if I watered or not. The problem started at second week from germ. The leaves started to yellow between the veins and on leaf edges. It spread from the bottom of the plant upwards. Now they are are all like that. Finally the leaves curled. What's wrong and what can I do?
Need a better pic Come you lazy stoner .. take the plant out of the grow room and get a pic in normal light .
Noticed any critters around? How often watering? And yes...better pics. Be kind. Perfect your craft. Give more than you take. We are family.
Bad pic, but look like classic nute deficiency. Marijuana is a heavy feeder... it may have simply used all the nitrogen in your substrate by now 210 watt perpetual box https://forum.grasscity.com/index.p...att-3.5-sq-ft-Northern-Lights-and-White-Widow: