Leaves on Pink Kush CBD

Looks like an issues in the root zone to me, prob from a overwatering or rot issue. Also could be from a PH issue to salt buildup. Given that your feeding liquid nutrients and are not monitoring the EC/PH of the runoff this is most likely the cause. I would invest in a PPM/EC pen and water till you have min 30% runoff to avoid buildup in the soil. the runoff can be disposed of or tossed outside into your normal garden or lawn if diluted down, make it real week so its like a super light feeding for the outdoor plants. Monitoring the EC of the feeding solution and runoff will help problem solve any other issues down the road. its easy to mix the fertilizer to its recommendations then just dilute till you hit your target EC for the size of the plant. Best Of Luck!