This looks like magnesium deficiency. Over the years, mg def has been blamed for many different appearances, but I think this is mg def because the brown spotting as shown here is very characteristic of the problem. If the brown spots first show up as yellow-golden spots, then later turn brown as the rest of the leaf turns yellow, then it's probably mg def. Interesting this has happened with your ferts, but read the labels and if they don't show much mg, then that's probably your problem. Also, at 30 days flowering the plants are dying naturally, which compounds grower confusion. It's probably time to harvest whatever the plant has produced and consider a different way of growing next time. Try DWC next time and if you want a different fert, I usually suggest dynagrow 7-9-5. But you can do whatever you want. Just a little more mg next time. Can you put up more pictures of the entire plant?
polishpollack Reviewed by polishpollack on . Yellow leaves with spots 297190297191297192 Hydro Growers: 1. Are you growing from seed or clones? clone 2. How old are your plants? day 30 flower Rating: 5