What did I do now? No luck

GreenStart2019

420 Member
This girl was doing very very well yesturday and today upon checking her there are huge brown spots taking over the bottom leaves. She was watered yesturday and responded very well. This is only the third watering in 2 weeks but I really don't think it's underwating as I always waited until the top inch was completely dry before bottom watering her.

Humid : 70%

Temp 23C / 73F

Light: 2000W COB + Red Blue (only using red blue right now not the cobs as the temp was reaching like 30 C / 86F )

AirFlow: 4 in inline with carbon filter + 2 small fans one in taking cold air and the other oscillating in the tent

Pictures below.... What does this look like.
 

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I think it's over watering. but we'll see what others have to say.
 
Sorry I should have mentioned it was black gold organics, I recently did a soil fert test and NPK are all still high

i'd let the soil dry out more next time before watering again. they'll be fine.
 
This girl was doing very very well yesturday and today upon checking her there are huge brown spots taking over the bottom leaves. She was watered yesturday and responded very well. This is only the third watering in 2 weeks but I really don't think it's underwating as I always waited until the top inch was completely dry before bottom watering her.

Humid : 70%

Temp 23C / 73F

Light: 2000W COB + Red Blue (only using red blue right now not the cobs as the temp was reaching like 30 C / 86F )

AirFlow: 4 in inline with carbon filter + 2 small fans one in taking cold air and the other oscillating in the tent

Pictures below.... What does this look like.
Leaves damaged due to mildew..PNG
 
That does look like what it might be. If so how should I start to deal with this ?

On another note I was looking into a calcium deficiency and my house is using some pretty powerful water softeners which remove calcium and magnesium and replace it with sodium, the PPM of my tap water ranges between 170 and 250..... Is it possible that it is a calcium deficiency. This is a pic of a plant with mid stage calcium deficiency
 

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The plant was just watered yesturday and the soil was dry 2 in down and my soil monitor was reading at 15% in root zone. These pics were taken right after watering. I don't think over watering is the issue here it's also only been watered 3 times since germination and prior to the transplant she was in a smaller container see pic below. So I really really don't think water is the issue. You are seeing wet soil because she was watered and transplanted minutes before these pics were taken.
 

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No its not excessive air is so important for everything from co2 to heat to mold and mildew.To over watering.
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I am not trying to argue and I am sorry if it seems as if I am but I have a inline fan meant for 1500 sq feet venting out the tent and one bringing freshair in and another ocellating directly on the plants. If I don't have the humidifier on the humidity drops to below 30 % with the amount of airflow. And when I crack the door in the closet were the tent is there is incrdible air exchange blowing in my face lol
 
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