I have an issue with Gold Leaf. See pics. Some leaves are yellowing with crispy brown edges. None of the seven other plants are exhibiting this symptom. They all get the same - compost tea weekly, but watering with PH 6.5 RO water w/ URB, Blue Planet liquid seaweed, and molasses every other day. 100% organic so no synth nute salts. Soil is FF OF/HF w/ EWC & Roots Organics Nitro bat guano, along with some Root Magic powder. All in the recommended amounts. I have this GL, one Afghan, two Blue Dreams, three Super Lemon Haze. Other plants look good. Lighting is Niemi LED HLG 550 R Spec knockoff which actually works very well, at 80% brightness. Tent is well ventilated, temps stay at around 72°F but struggling to keep humidity under 65.
Insights appreciated, forgot to mention in middle of week 6 of flower. Thanks