I got mine from bfgsupply.com - Good prices and reasonable shipping. Service was quick, but no tracking info. Lots of fertilizers and components. 25# of Jack's Hydro, 50# of Yara Liva CalNit, and 25# of 20-20-20 for the garden set me back less than $150 including freight.
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A question for the growers using Jacks 5-12-26
- Thread starter Jabapc
- Start date
I got mine from bfgsupply.com - Good prices and reasonable shipping. Service was quick, but no tracking info. Lots of fertilizers and components. 25# of Jack's Hydro, 50# of Yara Liva CalNit, and 25# of 20-20-20 for the garden set me back less than $150 including freight.
They have a warehouse in Grand rapids mi..... close enough to me...
They have hassled me in the past for being a walk in non-business customer....
Are you a business???
Its just something to be aware of
Nah, just a nube and a gardening freak. I didn't have any trouble ordering and everything went without a hitch. But they're definitely geared to businesses. It's not like ordering from Amazon. One confirmation email and it showed up 4 days later in MN. No tracking, no order lookup. It looks like you could sign up as a business and get access to that, but my only experience was that one order. And it should be years before I need more.
Using Jack's has saved me a huge amount of time and money. No more paying for water and measuring out a dozen components and obsessing over PH. I'm following a recommendation I found elsewhere that goes like this.
Add and mix as specified in this order on the package:
5-12-26 / Epsom Salts / CalNit
Veg: .9 EC / 0 / .6 EC for 1.5 total
Flower: .6 EC / .1 EC / .3 EC for 1.1 total
With RO water. So far so good.
I am a forgetful old man and apparently can't do math.
Veg: .9 EC / 0 / .6 EC for 1.5 total
Flower: .7 EC / .1 EC / .3 EC for 1.1 total
55 gal drum with RO. two pumps running 24/7. One rigged to other reservoirs and another just moving the water in the barrel around.
Dump the dry powder Jack's in first. Come back 15-30 mins later and dump in the dry calnit. Come back 5 mins later and open the valves to the reservoir of choice. Easy as could be. No need to fuss with premixing or stock solutions.
Dump the dry powder Jack's in first. Come back 15-30 mins later and dump in the dry calnit. Come back 5 mins later and open the valves to the reservoir of choice. Easy as could be. No need to fuss with premixing or stock solutions.
Been using jacks for a while and I love it. My buds don't look the same as back when I used bottled nutrients but still top top. My question for everyone is what do you think about the Phosphorus supplied by 5-12-26? @ 2.5g/gal it looks like P is around 35ppm and @ 3g/gal is around 42ppm? Does that seem low? Do you think there would be any benefit by bumping the Phosphorus in 5-12-26? If so which salt would you suggest. I have heard dizzlekush on here or another site talk about using Di-ammonium-phosphate after week 3 but it has ammonium N as well as P. Any ideas on adding Triple Superphosphate 0-45-0 w 14% Calcium and 1% Sulfur. Any imput?
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I have no idea about Jacks, but I do know that K is the symbol for Potassium, not Phosphorus, having had a few chemistry classes a long time ago. P is the symbol for Phosphorus.
brainzfuxed
Member
how does jacks compare to 6/9 in coco?
Search for my posts in this thread. I did a side-by-side and am back to 6/9. HTHs
I'm pretty sure it's been thoroughly discussed that the ratio of N-P-K in lucas formula (6/9) works, but isn't ideal.
Probably still a controversial discussion though.
*Edit*
An excerpt from JRPeters literature:
Proper fertilizer selection
PROBLEM: Lemming syndrome: Following the crowd may leave you standing alone.
RESOLUTION: Blindly following the recommendations of a manufacturer’s representative, respected grower or industry researcher without knowing your irrigation water quality can lead to problems. Not all growers benefit from using the same fertilizers. This is one reason so many different fertilizers are available. Growers must balance crop needs, water quality, fertilizer quality and cost-in-use.
Probably still a controversial discussion though.
*Edit*
An excerpt from JRPeters literature:
Proper fertilizer selection
PROBLEM: Lemming syndrome: Following the crowd may leave you standing alone.
RESOLUTION: Blindly following the recommendations of a manufacturer’s representative, respected grower or industry researcher without knowing your irrigation water quality can lead to problems. Not all growers benefit from using the same fertilizers. This is one reason so many different fertilizers are available. Growers must balance crop needs, water quality, fertilizer quality and cost-in-use.
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Ganjaganjakush
Active member
in coco it works best using at a 1:1 ratio in my garden, i had way to many deficiencies using the 1/.67
I wish I knew... My only theory given I did a side by side same time/condition/media/strain compare, is the use of coco is not ideal w/jacks due to its CEC and propensity to bond with P and/or K.
I think jacks has too much K. Perhaps it messes with the buffer/causes some lockout. Perhaps that can be fixed with some additive, IDK. I was looking for a KISS approach...
6/9 = 97/60/105
Jacks @ 1:67 = 135/35/190
http://maximumyield.com/blog/2015/0...tion-exchange-capacity-in-coco-growing-media/
https://www.icmag.com/ic/showthread.php?t=142846
Ganjaganjakush
Active member
I make quart jars but ur stock solution does not matter if you measure .5ec of one then .5ec of other or however much EC you want, just using this way works better for me most of the time I'm at .8 total through whole grow in coco room bump the up for a few days if I notice them greening up but it's always in the same ratio of 1:1
I had problems with jacks having to much K when i did 1:.67 and even when I switched over to 3jacks 1 mag 2 calnit. It for sure was causing some lockout. Only when I did 2.5g Jacks 0.5g mag 2.5g calnit did it start to be the winning mix for me.
Comes out N 136 , P 35, K 146, Ca 125, Mg 55, S 71.5.
Ive been using that from start to finish and everything looks great.
Ive been working on a new mix, if anyone has any input that would be great.!
NO3 140.009
NH4 10.009
P 49.978
K 120.011
Mg 60
Ca 124.999
S 46.134
Fe 2.994
Zn 0.158
B 0.497
Mn 0.492
Cu 0.156
Mo 0.103
Na
SiO2 35
Comes out N 136 , P 35, K 146, Ca 125, Mg 55, S 71.5.
Ive been using that from start to finish and everything looks great.
Ive been working on a new mix, if anyone has any input that would be great.!
NO3 140.009
NH4 10.009
P 49.978
K 120.011
Mg 60
Ca 124.999
S 46.134
Fe 2.994
Zn 0.158
B 0.497
Mn 0.492
Cu 0.156
Mo 0.103
Na
SiO2 35
Interesting. May UI ask the source of the .5 mag? Are you using cal/mag or....
Thanks
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Just checked this for my own curiosity. I got the following:
2.5g Jacks=400ppm
0.5g Epsom=40ppm
2.5g Calnit=320ppm
Total ppm 760(500 scale)
Does sound about right AWDTERROR?
Dr-dank What do you mean when you say the course of the .5 mag?
when I did 3g jack 2 g calnit I never saw any mag def but when I switched to 2.5 2.5 It was looking like I was having a little mag def on some of the pickier strains so I add the .5 to get it up to 55. It could probably be omitted for most though.
Treetroit City Yes that looks just about right. I use that ratio and just dilute down to 600 PPM for veg and late flower.
Going to start adding .25g(35ppm) Potassium silicate into it. too. It just wouldn't jive with the 1/.67 or 3gjacks/2g calnit.
Really been getting positive reviews since I started adding Chitosin as well as laminaria digitata and ascophyllum nodosum kelps in flower. Smell, taste and overall shine has improved. I am starting to love this mix. Its amazing that nutrients aren't even a financial factor for me anymore.
when I did 3g jack 2 g calnit I never saw any mag def but when I switched to 2.5 2.5 It was looking like I was having a little mag def on some of the pickier strains so I add the .5 to get it up to 55. It could probably be omitted for most though.
Treetroit City Yes that looks just about right. I use that ratio and just dilute down to 600 PPM for veg and late flower.
Going to start adding .25g(35ppm) Potassium silicate into it. too. It just wouldn't jive with the 1/.67 or 3gjacks/2g calnit.
Really been getting positive reviews since I started adding Chitosin as well as laminaria digitata and ascophyllum nodosum kelps in flower. Smell, taste and overall shine has improved. I am starting to love this mix. Its amazing that nutrients aren't even a financial factor for me anymore.
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