What ec do you all use with led

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Thisguy-4'

Active Member
I have a spiderfarmer 4000 and I read that with led you need to up the ec because the plants don't transpire as much compared to hid lamps so it needs to be stronger to receive the same amount of Nutrients
 
harrychilds

harrychilds

Well-Known Member
ec in coco I use 1.0 - 1.2 all the way through veg and in the first week or two in flower you can higher it a little bit when they stretch up in the first few weeks and then lower it back down after a week or two.
 
T

Thisguy-4'

Active Member
harrychilds said:
ec in coco I use 1.0 - 1.2 all the way through veg and in the first week or two in flower you can higher it a little bit when they stretch up in the first few weeks and then lower it back down after a week or two.
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Ok thanks I went up to 1.8 and did yours look like you could of gave them more
 
S

Spindle818

Well-Known Member
I run 2.5 ec in veg and 2.5 to 3.0 in flower depending on the strain. First 3 weeks of flower I hit 80-82 degrees and keep my humidity between 73 and 76. Also I just grow in the Hugo 6” blocks
 
harrychilds

harrychilds

Well-Known Member
Spindle818 said:
I run 2.5 ec in veg and 2.5 to 3.0 in flower depending on the strain. First 3 weeks of flower I hit 80-82 degrees and keep my humidity between 73 and 76. Also I just grow in the Hugo 6” blocks
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Wow, 3.0 ec is high I don't even know if my EC pen goes that high, 76% humidity sounds high for week 3 of flower, I wouldn't run any higher than 60% humidity in week 3 flower. I wouldn't even give a seedling 76% humidity, that would make my house damp as hell lol :bigjoint:
 
T

Thisguy-4'

Active Member
Spindle818 said:
I run 2.5 ec in veg and 2.5 to 3.0 in flower depending on the strain. First 3 weeks of flower I hit 80-82 degrees and keep my humidity between 73 and 76. Also I just grow in the Hugo 6” blocks
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Wow have you ran that under a hid lamp too I thought it might of been because of the temperature but obviously not
 
Star Dog

Star Dog

Well-Known Member
Thisguy-4' said:
I have a spiderfarmer 4000 and I read that with led you need to up the ec because the plants don't transpire as much compared to hid lamps so it needs to be stronger to receive the same amount of Nutrients
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Yes I've found that I need a higher ec using led even with favorable temperatures, seedlings 0.9/1.2ec and flower 1.2/1.5ec then lowered towards the end.
 
S

Spindle818

Well-Known Member
harrychilds said:
Wow, 3.0 ec is high I don't even know if my EC pen goes that high, 76% humidity sounds high for week 3 of flower, I wouldn't run any higher than 60% humidity in week 3 flower. I wouldn't even give a seedling 76% humidity, that would make my house damp as hell lol :bigjoint:
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I try to follow vpd for as long as I can in flower
 
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