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Grow QuestionsDo you think I'm showing signs of N toxicity ...

Do you think I'm showing signs of N toxicity ...

NewbGrower87started grow question 6 years ago

Do you think I'm showing signs of N toxicity towards the end of week 3? Input welcome!

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Leaves. Curl down

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HighTVanswered grow question 6 years ago

Hey there @NewbGrower87 I Do not see any signs of Nitrogen Toxicity. Generally N tox shows itself in 3 main ways. The most obvious is whats called the 'claw' where the leaf tips bend down aggressively. The second thing to look for is a Dark Dark green color and while your plant does look a healthy green from the pictures I wouldn't say they are dark enough for a N toxicity. The last thing to look for is one of the more obvious signs and that is shiny fan leafs. N Toxicity causes the Fan leaves to get really dark and shiny looking before causing the 'claw'. So because of these reasoning I do not think you have an N toxicity at all. (If you start to see signs of N tox DO NOT drop Cal-Mag like you hinted at and instead lower the Micro a little.) 😎

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Athosanswered grow question 6 years ago

615 PPM is a bit high for a 3 week old seedling. I would lower it by half (to 300 PPM). It does not look like it has nitrogen toxicity, although it shows signs of over watering (the wavy leaves), since it is on a pot too big for its size.

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