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Why are the leaves tips curling dying and brown marks appearing?

Chief_Leaf
Chief_Leafstarted grow question 4 months ago
My Mac #1 showing brown spots/marks on leaves, with tips curling and dying yellow/brown - what is the problem? How do I fix this? She is in week 5 flower. Is it calcium deficiency? pH problem?
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Leaves. Tips - Burnt
Leaves. Tips - Die
Leaves. Color - Dark-brown
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DaddyPrime2
DaddyPrime2answered grow question 4 months ago
it looks like a combination of a few things. chlorine toxicity. calcium deficiency. and lack of nitrogen which can happen late in flower naturally but it doesnt look like a normal fade. are you using dechlorinated water? my best guess is thatits a ph issue and the plants arent uptaking as well as they could. also looks like you may be pushing nutrients too hard. ill take a look at the whole diary and then send you a message with anything possibly helpful. i need more info than just the pictures. buds look great overall tho. best of luck 🤙
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