Jack Herer

Hi there! Hard to say with your last pictures, but my guess is that you overfed your plants with too many nutrients and inappropriate pH, resulting in a nutrients lockout. Your plant is now unable to absorb nutrients (could be Potassium, Magnesium or Iron..) and she responds with those signs, asking for help! As for an example, 3ml/L of BioGrow during week 11 is way too much! BioGrow intakes should have stopped right after the stretch ended. She only needs BioBloom+TopMax+BioHeaven if possible. Also, your babies might suffer from pH fluctuations. Why did you apply a 6.8 pH for this last week? You should stick to a 6.0-6.5 range. Now, as an emergency move, I would flush the soil for a couple of days, with plain pH'd water (~6.3), let the soil dry between each waterings, and see how it goes. I'll be around, keep us up-to-date, and happy growing!