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LED low temp interveinal chlorosis er what!!??

JetLife175

Well-known member
Veteran
I am sticking with straight jacks 321 recipe after talking with them. They said its got low enough N that it shouldnt burn with all else good. I get it environmental factors are showing hardcore, I am coming from verticle hanging hps bare bulbs to a tiny ass tent with a gigantic tanning bed inside!

Clearly Got to dial light back to slow metabolism. Back to 50 and watch the blue dream. They barely into bud at day 8. Looked like they were a bit greener but the GDP maybe getting rust spots, she's taking off though. Strong plant.


I have dimmable HPS bulbs and I do this with HPS as well.

Week one is 60% strength and every week I go up 10% until I'm maxed out.

I'm usually at 2.2 EC start of flower and end up at 2.5 by the end. All depends on cultivars honestly.
 

LostTribe

Well-known member
Premium user
I have dimmable HPS bulbs and I do this with HPS as well.

Week one is 60% strength and every week I go up 10% until I'm maxed out.

I'm usually at 2.2 EC start of flower and end up at 2.5 by the end. All depends on cultivars honestly.
I've read strange stories of 4.0ec in LED....

I need an environmental controller that is clear. Back in the day the old green air c02 and temp exhaust was all I had. Havent ran anything but fans with hps for a long time. easy stuff this new shit is like going back to first grade!!!
 

JetLife175

Well-known member
Veteran
I've read strange stories of 4.0ec in LED....

I need an environmental controller that is clear. Back in the day the old green air c02 and temp exhaust was all I had. Havent ran anything but fans with hps for a long time. easy stuff this new shit is like going back to first grade!!!
People are pushing 4.0+ with under canopy lighting added from my understanding. But let's be honest here, I don't think anything really needs that much at any point. If your PPFD is through the roof I understand just pumping it but I'm more of the KISS approach. And especially with jacks I would just stay in the 2.0-2,5 range. You can grow some reallllllly killer herb with jacks.
 

aCBD

Well-known member
Someone please get me a proper VPD chart. They are all different on google!
vpdchart dot com

1000000745.gif
 

aCBD

Well-known member
I barely increased exhaust, added RH, added heat and added ligth.
The AC Infinity, Mars Hydro or Spider Farmer with the controller unit have an Auto mode. You can set min&max rH and min&max temperature as trigger points for the exhaust. Really helpful.
 

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