Potassium deficiency? DTW with coco coir

[shortarker99]

Hi guys

Im on week 4 of flower. Im using this nutrient solution:

Is it potassium deficiency?
I pre-treated de coco coir









Any suggestion?

 

[myke]

Tips curling up is a good hint.

 

[drbudkilo]

Hi guys

Im on week 4 of flower. Im using this nutrient solution:

Is it potassium deficiency?
I pre-treated de coco coir

View attachment 5034087


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Any suggestion?

that is most likely salt buildup in media causing lockup . tip burning is a sure sign. what is your runoff EC?