Ebb and flow 12 site 55 gallon res
2-750w full spectrum LEDs
Flora series 3 part and calmag at mild veg dose
1350 ppm co2
83-85f 70-72 rh
45 days from seed ilgm White widow and GDP
Photos
PH between 5.8-6.2
Help me help myself!
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1350 seems a little rich to me on ppm. I flush around that then add nutrients the plant needs. Over dosing calcium will cause this issue. It will block other nutrients.
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What’s the EC or PPMs of the nutrient mix Growmie 
I interpreted this as the CO2….we’ll see
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Maybe I took is as nutrients ppm. LOL
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1350 is high if that’s the nutrient solution
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Ec is at 1.66
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On point at 1.6, is it just those few leaves? The leaf edge necrosis and yellowing in the leaf margins resembles a potassium deficiency but I would expect more leaves to look like these? Are you using RO water
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It’s on 5 of 12 plants. Using tap water that has sat for 36 hours. Ppm of 40. Really stumping me.
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What’s the nutrient ratio as in NPK, kind of stumped myself. The temps and PH are good in the reservoir??
At work right now but 5ml per gallon of micro grow and bloom. And 5ml per gallon of calmag
Water chiller keeping res at 68-69f. Airstone and small pump keeping the water moving.
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Take it with a grain of salt but it looks a lot like a calcium deficiency.
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Ty mud I can try a bit more calmag
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