I'm on my 4th wk of flowering and the lower, older fan leaves are turning a bright yellow with green stripping in the leaf. It's not just one plant its every plant. The strains are Larry OG, AK47 and California Dreaming. I'm using Pro- mix and Earth Juice line of muted. My lights are 3 400 watt hps. I also bubble my earth juice for at least 24 hrs to stabalize ph. Any help would be appreciated.
