stickymickey

Hey there. Ive got 4 fastbuds strains on the grow at the moment, all coming to the final stages of flowering aswell. I'm showing the same deficiency but much worse on my six shooter. It seems the bigger the plant the worse hit they are. I flushed at first and checked ph calibration. I'm upping the amount of PK booster and watching. Also feeding atleast twice daily to give it a fresh and constant supply. how is yours doing?