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I have noticed that burn tips in the large Plants ...
AutoflowersSucKanswered grow question 2y ago
Burnt tips is a sign of nutrient toxicity. You probably have build up in your soil. You can either flush your soil with 6.2 pH'd tap water, or just do a watering or 2 with just 6.2 pH tap water. Flushing will be the quickest way to remedy it. I'm a big advocate of flushing your plants at least once in a grow. Especially after week 2 of flowering.
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