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Just notice some leaves started curling up, but on...
mad_scientistanswered grow question 6 years ago
Hello @BadKarma ! Most commonly this comes from heat/humidity stress and nutrient burn. Incorrect PH makes lots of deficiencies and you have none. I believe its a genetic treat . I have seen this before. A strain that makes that very very often is the alien rift from ocean grown seeds ( www.youtube.com/watch he talks about that treat). You don't have to worry. Happy growing ! 👊
CRiSPrGrowanswered grow question 6 years ago
possibly the begining of root problems,if you're growing organic, usually you want to add a "boost" around now of compost tea or humic + fluvic acids, this should straighten out the root issues and the leaves may recover. hope this helps 🚀
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Athosanswered grow question 6 years ago
Curling leaves can be due a number of reasons. Heat stress from the light been too close, but in this case the affected leaves would be the ones from the top. Over feeding, but I don't see you feeding anything yet. The other reason is wrong pH (too high probably), this happened to me in my first diary (the Colombian Gold one, if you want to check it), the affected leaves looked just like yours and was because my tap water pH was over 8, even close to 9. Since you don't post pH values I'm willing to bet that you don't meassure , much less adjust your water's pH. so that's my suggestion, get a pH meter and check your water's pH.
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