What does this look like to everyone? Burn or a deficiency? Like K? Its happening to all 3 of my plants. Im feeding 5g MC 2.0 with 1.2g of their PK and 4 mls of calimagic per gallon as i did with my last batch of plants. Everything was green up til last week-ish then this showed up. It happened once before and it showed up so late that i didnt get it nailed down before it was time to pluck em. It didnt really hurt yields but the plants were ugly by the end of it. All krispity and such. Any way. Im in 5 gal all perlite hempy water/feeding every other to every 3 days. Depending how thirsty they look and how light the buckets are. Closet it 2.25x5x10. 2 quantum boards, one the 260xl hlg 3000k and a 135w board with hlg's rspec flowering spectrum. Temps are low 70s to low 80s. Humidity is a pretty constant 45%-50%
Any assistance would be greatly appreciated. I dont wanna mess these up. Ive been waiting to try them. Triple cheese, blue dream and green crack cbd.