H

Humble

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Jan 22, 2019

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Jun 16, 2019

#1

Nutrients: Megacrop 5.5g/gal
Ph: was 6.3-6.4 for majority of grow until another grower told me to go to 5.8 because he believed it was a manganese deficiency (locks out at 6.0ph)
The brown necrotizing slowed down considerably but its still there. I noticed the issue starting at the bottom of the leaves. Then It started on top. Any help is appreciated.

 

Cannabizz

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Jun 17, 2019

#2

Calcium, Magnesium and Manganese should be implemented into your soil medium.

 

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NGA

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Jun 18, 2019

#3

You use any cal-mag or Epson, your lighting led

 

Thegermling

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Jun 22, 2019

#4

NGA said:

You use any cal-mag or Epson, your lighting led

Click to expand...

Calcium was like 96 ppm per gallon. I was supplementing 50ish ppms per gallon of mg via epsom (led) totaling around 74 ppm per gallon and I was told by another grower that my mg levels were to high and have since reduced it. The browning and mottling slowed down but its still there.

 

dreamgreen

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Jun 22, 2019

#5

what are you using for water? RO, distilled, tap...?

 

Thegermling

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Jun 22, 2019

#6

dreamgreen said:

what are you using for water? RO, distilled, tap...?

Click to expand...

My tap water registers 0ppm on my bluelab(700 scale).

 

dreamgreen

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Jun 22, 2019

#7

I was having similar problems using tap water. Turns out it was alkaline. Bought a distiller and all’s well. Yours may be fine though.