I figured out that like the above guy said it’s the stronger lights, but also I noticed that I have to keep the medium saturated under the LED because as soon as my soil even gets a tad bit dry I start seeing the bleaching and what looks like calcium deficiency so watering every 2-3 days seems...
Yo I’m having this same issue with certain strains after switching to LED. I kind of think it’s nute burn? But It doesn’t happen with the same feeding on the same cut under HPS
https://www.calicloneco.com/product-page/cereal-milk
https://www.calicloneco.com/product-page/gary-payton-x-mac1
Cereal milk is the sister to Gary P same parents diff phenos and they only want 20 per cut with 40 dollars shipping