Jack's 321 with RO water = 121 > 221 > 321?

J

jonnynobody

Well-Known Member
lusidghost said:
I'm getting mag deficiencies in late veg and it's delaying the flip. So I was thinking should I be running the part B and the epsom salt at full strength from the beginning, and step up the part A as I go? Tap water would have plenty of cal/mag before adding the nutrients, so I feel like keeping the 321 proportions in the early stages with ro is starving my plants. I could add Calimagic or some such, but why not just use the calcium nitrate and epsom salt instead?

Does this seem like a bad idea? I know people recommend against deviating from the 321 proportions. Maybe run the cal nit and epsom at half strength instead of going full bore?
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I see most people having problems with jack's when they start fucking with the ratios. 4g jack's and 2.4g calcium nitrate per gallon. You do not need the epsom salt. Jack's has 6.3% magnesium sulfate. That's a lot of effing mag sulfate. Adding more in veg will only cause you problems. Add epsom salt in flower. Not veg. That extra sulfur will develop some stinky delicious flowers but it is wholly unnecessary in veg. Dilute as needed to 650-725ppm on the 500 scale. PH to 5.8. Without having any more information about your grow that appears to be some nasty LED light burn. The reason I think that is because of your brown rust spots in addition to the chlorosis. Typically (not always) these are telltale signs of LED light burn.

Are you positive this is a nutritive issue?
What ppm are you running jack's at?
What kind of light are you using? What is the wattage?
How far away from the canopy is your light?

Cal mag should never be used with jack's 321. You have calcium nitrate and you have epsom salt as part of the 321 system. What would you be using the cal mag for?
 
lusidghost

lusidghost

Well-Known Member
It's definitely not light burn. I've had the same lights for years and set my scrogs about the lowest I've ever been able to. Also one strain, which is half of the plants, is doing fine. I didn't say I was using calmag. My point was when adding calmag you typically hit between 0.2 and 0.4 EC before adding the nutes. I was asking if it would make sense to add calmag instead of messing with the Jack's ratio.

There's a lot of conflicting info here, and it all conflicts with Jack's feeding chart. Why would the recommend epsom in veg if it's not necessary? And why would they suggest running such a high EC? I get trying to sell a little more salts, but 2.4 or whatever in veg seems insane.

I'm going to have to check out the roots. This is annoying for the obvious reason of my plants being unhealthy, but also since I've never really had nutrient issues until I switched from Canna.
 
TintEastwood

TintEastwood

Well-Known Member
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farmerjoe420

farmerjoe420

Well-Known Member
rkymtnman said:
so even if it burns your plants, keep feeding full strength?? nonsense.
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I’m talking about jacks 321 and at 321, it doesn’t burn plants. Your comment is nonsense. Do you even use jacks ? That’s all I use and it doesn’t burn plants at the 321 rate , not in my garden.
Dude has a deficiency from feeding to light. Guaranteed if he feeds full strength it goes away
 
rkymtnman

rkymtnman

Well-Known Member
farmerjoe420 said:
I’m talking about jacks 321 and at 321, it doesn’t burn plants. Your comment is nonsense. Do you even use jacks ? That’s all I use and it doesn’t burn plants at the 321 rate , not in my garden.
Dude has a deficiency from feeding to light. Guaranteed if he feeds full strength it goes away
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oh i gotcha now. so if it works for you at a high EC it will work for everybody. makes sense (sarcasm font on).
so you think you could run 2.4EC in an aeroponics system too??

you keep giving out bad advice.
 
lusidghost

lusidghost

Well-Known Member
rkymtnman said:
oh i gotcha now. so if it works for you at a high EC it will work for everybody. makes sense (sarcasm font on).
so you think you could run 2.4EC in an aeroponics system too??

you keep giving out bad advice.
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I mean, I was feeding them ultra light in comparison to some of the advice given here along with the company's recommendations. Obviously it's just a guideline, but it's hard to call it bad advice when it's what Jack's is saying to do. I switched over halfway through flower it during my last grow, but that didn't give me much experience in using it. So I really don't know.
 
farmerjoe420

farmerjoe420

Well-Known Member
rkymtnman said:
oh i gotcha now. so if it works for you at a high EC it will work for everybody. makes sense (sarcasm font on).
so you think you could run 2.4EC in an aeroponics system too??

you keep giving out bad advice.
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Dude, I’m giving out advice that might actually help this guy. just because you got fucked up well water and can’t use full strength doesn’t mean it won’t work for others.

We’re not talking aeroponkcs right now , we’re talking about this guy who is in coco and having issues. Not sure why your trying to make this in to something else

What exactly was your advice to the guy who started this thread and is obviously having deficiencies, feed less and that will fix it ?
 
farmerjoe420

farmerjoe420

Well-Known Member
lusidghost said:
I mean, I was feeding them ultra light in comparison to some of the advice given here along with the company's recommendations. Obviously it's just a guideline, but it's hard to call it bad advice when it's what Jack's is saying to do. I switched over halfway through flower it during my last grow, but that didn't give me much experience in using it. So I really don't know.
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Don’t listen to this fool. He has no personal experience at all with 321.
 
rkymtnman

rkymtnman

Well-Known Member
farmerjoe420 said:
Dude, I’m giving out advice that might actually help this guy. just because you got fucked up well water and can’t use full strength doesn’t mean it won’t work for others
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what are you babbling on about? who said anything about bad well water?

there are so many factors you are missing: what light intensity? what RH? what VPD? what altitude? that you aren't even taking into consideration.

and my aero comment: you said to run 321 at full strength. do you think it would work in a HPA at 2.4EC? nope.

what works for you doesn't work for everybody. comprende? i grow at almost 9000 feet: you think your conditions match mine??

late
 
Gemtree

Gemtree

Well-Known Member
321 is 1.2 ec. 3.6-2.4-1.2 is 1.4ec. Tint knows what's up. Make sure your runoff isn't more than 200ppm (.4ec) more than what goes in or you have buildup
 
farmerjoe420

farmerjoe420

Well-Known Member
rkymtnman said:
what are you babbling on about? who said anything about bad well water?

there are so many factors you are missing: what light intensity? what RH? what VPD? what altitude? that you aren't even taking into consideration.

and my aero comment: you said to run 321 at full strength. do you think it would work in a HPA at 2.4EC? nope.

what works for you doesn't work for everybody. comprende? i grow at almost 9000 feet: you think your conditions match mine??

late
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Dude wtf are you talking about ? This thread isn’t about you. This guy doesn’t give a fuck about what works on aeroponics. He’s trying to get some help to what’s wrong LOL.
 
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