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Brown spots on leaves: fungus/Septoria?

Diegovvvv

New Member
Hi everyone. Does anyone knows what these brown spots are. Haven't seen something like that before.

This is a sativa.on its 5th week.

I did a quick search on G and some photos talking about fungus/septoria look pretty close to my plant. These spots are.on the top leaves.

Soil: plagron batmix
Nutes: plagron sugar royal 1ml/l
Light: LED 350w full spectrum
 

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Emilya

Member of the Month: Mar 2019 - Grow Journal of the Month: Jan 2020
top leaves means it is a non mobile element, confirming calcium to be the culprit. A bit of calmag could make this stop progressing.
 

Emilya

Member of the Month: Mar 2019 - Grow Journal of the Month: Jan 2020
 
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