I’m growing indoor with 600W MH with promix hp soil with mix of compost and gaia green all purpose mix and using cal-mag every watering. I noticed slowly the edges of leaves turning yellow, the newer leaves slightly curl down and new growth is very thin. Some of bigger leaves just underneath new ones have same symptoms but not as severe and bottom of plant seems completely fine. Looking around on internet not sure if this maybe could be Mg deficiency. But if anyone could offer their opinion it would be appreciated.
look for the yellow veins ... lucky you its not check this: How to Fix Cannabis Nutrient Burn - Pics & Symptoms good luck
