Hello. I’m growing 2 Wedding Cake plants from MSNL feminized seeds. I started them in Fox Farm Ocean Forest soil in solo cups. Transplanted into 1.5 gallon pots at week 3. At week 6 I noticed what I thought was a calcium deficiency. I transplanted them again into their final 5 gallon pots and added CalMag even though I wanted this to be an organic dry amendment run. It is now week 8 from sprout. They’re still growing but the deficiency is getting worse. Please see pics. I’ve been watering with 1 teaspoon CalMag per gallon and am not seeing any results. I plan to feed Green Sunshine Company’s dry grow amendments next week - week 9. Can you tell me what’s happening here and what I can do to fix it? Thank you for your time and consideration!
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What is the pH and PPM of the soil runoff?
This necrosis looks like an issue with a mobile nutrient. So Mg,P,K or N. By the looks of it I would say it's a later stage phosphorus deficiency. If those were my plants I'd be clipping the damaged leaves and adjusting my nutrient levels to gain more phosphorus. Hope this