First the vitals.
I’m growing Northern Lights in DWC under 400w Vivosun Aero wing light supplemented with 4 - 80w Vivosun LED side lights. I’m using General Hydroponics Flora Trio nutrients, Armor si and CalMag in a container that comfortably holds 3.5 gallons. My grows have all been done in a 4 x 4 x 80 inch tent.
My typical MO in the past has been to completely change my nutrient solution once a week. Keep in mind that my 9 previous grows were done with the tent in a spare room. I am now living in the high desert where temps are much higher and humidity is much lower. As a result of the change in climate, my girl has been consuming a great deal more water. So I’ve been mixing up a gallon at a time of PH’d nutrients and adding a gallon at a time as needed. And because of this, I hadn’t been doing the weekly water swap. And finally, because of this practice, my plant had been consuming much higher amounts of nutrients. Of which, nitrogen had become a problem causing clawing or leaf curl caused by nitrogen toxicity. When discovered, I immediately added a gallon of PH’d water and let my girl run through a 12 hour light and 12 dark cycle while I formulated an acceptable solution. The solution was to completely drain and refill my tank with carefully measured nutrients. When I opened up the tent to do the swap, I could already see my girl recovering from the nitrogen issue. I went ahead with the full fluid swap and 24 hours later the clawing has almost completely cleared.
You can see in the pictures the clawing and the recovery.
Lesson learned. Information shared.
I’m growing Northern Lights in DWC under 400w Vivosun Aero wing light supplemented with 4 - 80w Vivosun LED side lights. I’m using General Hydroponics Flora Trio nutrients, Armor si and CalMag in a container that comfortably holds 3.5 gallons. My grows have all been done in a 4 x 4 x 80 inch tent.
My typical MO in the past has been to completely change my nutrient solution once a week. Keep in mind that my 9 previous grows were done with the tent in a spare room. I am now living in the high desert where temps are much higher and humidity is much lower. As a result of the change in climate, my girl has been consuming a great deal more water. So I’ve been mixing up a gallon at a time of PH’d nutrients and adding a gallon at a time as needed. And because of this, I hadn’t been doing the weekly water swap. And finally, because of this practice, my plant had been consuming much higher amounts of nutrients. Of which, nitrogen had become a problem causing clawing or leaf curl caused by nitrogen toxicity. When discovered, I immediately added a gallon of PH’d water and let my girl run through a 12 hour light and 12 dark cycle while I formulated an acceptable solution. The solution was to completely drain and refill my tank with carefully measured nutrients. When I opened up the tent to do the swap, I could already see my girl recovering from the nitrogen issue. I went ahead with the full fluid swap and 24 hours later the clawing has almost completely cleared.
You can see in the pictures the clawing and the recovery.
Lesson learned. Information shared.
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