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Glandore Hydroponic Nutrients, Lights and Equipment

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Is this Potassium Deficency?

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#1
ajunior

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Hi!

 

This is my first indoor grow and so far its been OK. I'm at Week 5 of flower now and the lower, older fans are showing signs of nute deficiency or excess.

 

I'm growing in Canna Terra professional and been feeding it bloom nutes with some boosters for Vit-B and potassium/phosphorus

 

 I feed every 3-4 days, temperature seems fine between 20-25c, ventilation with exhaust and oscilating fan, PH on the run off water is 6.3.

 

Is this deficiency or excess? Looks like something with potassium from other photos online...Am I correct or is it something else?

 

Also, what can I do to fix it? The other leaves on top look fine and the buds are looking quite healthy.

 

THANKS!

 

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#2
Sugar

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Yes I think it is potassium deficiency

Link below from canna website provides reasons why and solutions to fix :)

All the best with your grow

 

https://www.canna.co...urier_potassium

 

edit:

 

Actually, No, I think it is phosphorous deficiency

https://www.canna.co...rier_phosphorus


Edited by Sugar, 30 December 2020 - 05:35 PM.

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#3
micmac

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Heat damage or over watering, or both

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WARNING/DISCLAIMER The OZ Stoners cannabis community contains information regarding cannabis & other drugs; it is designed for mature (18+) audiences only. This site in no way condones the use of cannabis by minors. The content here within this cannabis community is for educational & entertainment purposes only. Any buying/selling or trading of illegal cannabis seeds, clones, flowers, resin or oil is strictly prohibited within this cannabis community.