GYOweedanswered grow question 4 years ago @ Fast_Buds bakedbeansseeds.com sent me a freebie fast buds poster with leaf diagnostics but I can't find a link to a pic of it. Try this https://www.growweedeasy.com/cannabis-symptoms-pictures They look pretty dark green so high ppm and lughts maybe caused stress but the good news is at this point if you are flushing it doesnt matter they will get yellow anyways.