Week 6 of flower. Please help :)

I wasn't paying close enough attention and barely noticed this on many of my leaves. I'm in week 6 of flower and have had smooth sailing until now. I'm leaning towards calcium deficiency. I use coco and supplement with 2.5ml a gallon of calmag. Other than that I'm using the gh flora series
 

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PopAndSonGrows

Well-Known Member
If you're using RO or purified water, bump calmag up to like 4ml/gal. If you're using tap IMO drop the calmag entirely and see how things progress.

How many mls/gal of each of the trio are you using?
 

harrychilds

Well-Known Member
I always feed it ph between 5.8 - 6.2
  • Use nutrient solution that is at half your normal Inflow EC
  • Apply twice the normal quantity of water
  • Wait ten minutes following the application
  • Add additional dilute nutrient solution to produce new run-off for measure
  • Test the EC of this new run-off, it should be at or below your normal target inflow EC
  • If the EC is still high, repeat this process at the next opportunity to fertigate
 

harrychilds

Well-Known Member
Set your EC to 0.8
Apply twice the normal quantity of water
Wait ten minutes following the application
Add additional dilute nutrient solution to produce new run-off for measure
Test the EC of this new run-off, it should be at or below your normal target inflow EC
If the EC is still high, repeat this process at the next opportunity to fertigate
 
If you're using RO or purified water, bump calmag up to like 4ml/gal. If you're using tap IMO drop the calmag entirely and see how things progress.

How many mls/gal of each of the trio are you using?
I use tap that's been through a PUR filter.

And I'm following the gh flora feeding chart
Micro 4.7ml
Gro 4.7 ml
Bloom 5.7 ml
 
Set your EC to 0.8
Apply twice the normal quantity of water
Wait ten minutes following the application
Add additional dilute nutrient solution to produce new run-off for measure
Test the EC of this new run-off, it should be at or below your normal target inflow EC
If the EC is still high, repeat this process at the next opportunity to fertigate
So you think it's nutrient burn?
 
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