Damn DrD I'm thinking I may have to bump up my OC mix. I sure don't see any burn, at 2tbsp/solo cup
Here's my runt at 12wk it's a completely different pheno, the other 4 girls all had fans of 5 leaves top to bottom, & the top 2/3's of the plant is all very narrow sativa leaf. This thing has 9 to 14 (2nd photo #14 looks like a hangnail) with wider more indica looking leaf. None of the fan leaf has yellowed or dropped, I think it will take at least 2 more wks.
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This is in the supachaka beta 1 smart pot with only OC+ in coco.