Hello everyone, This is my first grow (CFL) and I have two Fucking Incredible clones that are starting to yellow. I have narrowed it down to it being a lockout issue with my PH since my runoff is 6.8 and i'm running a Hempy bucket set up. Temps are 70-80 constantly and have decent air flow with one fan and one AC on 24/7 in a small office room. I feed them Fox Farms line up. Using Grow Big And Big Bloom at 80% strength. I flushed them today and will slowly start lowering the PH. I've read that it's best to lower your PH slowly or you will put your plants in shock, any personal experience you blades can shed? Here are some snap shots when they were in the tub getting flushed.
The pics kinda look like potassium toxicity. You might be overdoing it with the nutes. Try flushing, adjusting your Ph, and adding nutes at 1/3 or 1/2 strength. Should see results within a week or so.