leafs tips are burnt (see pics)

Hi
my plant is about 5 weeks old outdoor grow I notice that some of the old leafs tips are burnt (see pics)
PH is 7 (not accurate)
I start to give it BIO Grow 1 cc for a liter last week
:: BioBizz-BIO Grow

any Ideas
Thanks

If u can arrange your plant(s) away from too much sun, otherwise they'll def get zapped

Quote:

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Originally Posted by robwalker

If u can arrange your plant(s) away from too much sun, otherwise they'll def get zapped

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Agreed with you