Anyone know what this is

[Nugbutabi]

Do you have the EC runoff reading? My suspicion is because you fed such a high EC initially of 2.5 there is now “salt build up” in the rhizosphere. But we will only know this with that Runoff test

I don’t test run off ec only substrate ec with substrate meters because it doesn’t really give you an accurate measurement of what’s going on in your root zone I test ph with run off though and it’s at 6.0 so it shouldnt have a problem with calcium absorption. Calcium is uptaken by plants through transpiration so it helps move it through plants when your plants are transpiring is that chart for soil because ideal range for coco is 5.8 to 6.2

 

[Nugbutabi]

Leaf temps at 85F? That’s not good.

Meant 80 not 85 didn’t even notice till you posted that

 

[Silk689]

I don’t test run off ec only substrate ec with substrate meters because it doesn’t really give you an accurate measurement of what’s going on in your root zone I test ph with run off though and it’s at 6.0 so it shouldnt have a problem with calcium absorption. Calcium is uptaken by plants through transpiration so it helps move it through plants when your plants are transpiring is that chart for soil because ideal range for coco is 5.8 to 6.2

Sorry my bad homie. Thought it was soil not coco . And yes those charts are related to soil.

 

[Nugbutabi]

No worries man appreciate the input either way

 

[Medigrow]

i don't think 75% at 82f is bad at all. i would run it a bit hotter at 85f once their re-copped, specially under led's
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I did try to run at over 85, according to a member of a led company...

Worst crop ever! Fluffy stuff, less frosty and less yield. I would never go above 85 again.