Burmeseanswered grow question 4 years ago Hi friend, I think it could be nutrient lockout due to improper pH.Have you been checking your pH run off lately?It should be around 6.5.Also you are good to go with flora series as long as keeping your pH in proper range.For me, First I would check my water pH and ppm(EC),then check run off pH and ppm.That’s the key point of healthy plant.Happy growing... ✌️