Starting week 3 flower and started a deficiency…go figure

  • Thread starter geralds
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geralds

geralds

101
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Hi guys so I’m entering week 3 of flower with Apple Fritter. I’ve been pushing these plants pretty hard so I’m not surprised I have an issue. Lights are Growers choice ROI 680 LED about 2 feet off canopy. Full power.

I’m in 5gal fabric pots 50/50 coco perlite.
C02 @ 1100, temps 80-82 RH 55

I’m feeding GH micro 3ml and bloom 9-10ml with 4-5 ml of AN Big bud. I’ve recently only been adding 2-3 cal mag every so often. But have since bumped it up to 5ml since I thought it might be calcium. None of the new leaves have the issue, it is all older mid level leaves and a few secondary fan leaves. I’ve been feeding 4 times during lights on.

I checked runoff. I put in 700ppm and runoff was about 760-780. Anyone ever experience this before?
 
Starting week 3 flower and started a deficiencygo figure
NorthernOrganics

NorthernOrganics

934
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How much runoff are you getting when you feed? You could have salts built up in the coco
 
geralds

geralds

101
28
I aim for 15 percent runoff for 5 gal pots. Runoff was decent though. Input was 700 runoff was 760
 

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