Many hydroponic gardeners see this problem. It's the beginning of nutrient burn. It indicates that the plants have all the nutrients they can possibly use, and there's a slight excess. Back off the concentration of the nutrient solution just a touch, and the problem should disappear. Note that if the plants never get any worse than this leaf (figure 3), then the plants are probably just fine. Figure 4 is definitely an over-fert problem. The high level of nutrients accumulates in the leaves and causes them to dry out and burn up as shown here. You must flush with clear, clean water immediately to allow the roots to recover, and prevent further damage. Now find the cause of the high nutrient levels.



Figure 3 (left) and Figure 4 (right)
spongebobsmokepants Reviewed by spongebobsmokepants on . Veins Browning, turning into Major Devastation. Please Help. I've been having a serious problem for over 3 months now. I have tried to find a post from someone who has had a similar-looking problem, or who can analyze what's wrong. But I haven't seen anything that matches my problem, or any remedy that has worked so far. I'd really appreciate an analysis. Thanks. BACKGROUND: I'm now growing mostly Purple Bid Bud, with just a couple NYC Diesels and Sour Diesels. I grow indoors in soil. The soil is 50% perlite, 40% Fox Farm Ocean Forest, 10% Coco Rating: 5