3 days on jack's 5-12-26 and the plants are loving it! Bye bye General Hydroponics forever

Rurumo

Well-Known Member
I love growgreenmi, they had it even cheaper a few weeks ago, grrr should have bought it then. I'll get a bag once I'm done with my current grow, I'll start using it with a fresh set of plants in May and do a journal.
 

jonnynobody

Well-Known Member
interesting, did you used any MKP PK 13/14 or any other P booster? sounds like you didnt and are happy with the 12 percent P contained in the jacks.
No PK boosters. I believe they are unnecessary and only serve to over fertilize the crop resulting in poor flavor and burn qualities. This is known as "dispensary bud" in legal states. Tons of 'dro overloaded P&K in the flower cycle that taste and burn like shit. Looks great though in the dispensaries big glass jar. The truth unfolds when you smoke it. I believe in using a balanced fertilizer start to finish. No fancy gimmicks.
 

Rdubz

Well-Known Member
I can't wait now , it's on Order just waiting for delivery.. I did end up getting the entire line with clone and Bloom figured I might as well.... The onl6 thing I need to do is walk into store for some Epson salt didn't buy that from Jack's obviously lol maybe I'll start a journal as well I'm just starting brand new aero system with the Jacks as soon as I get it and it will be a first time for Nutes and System so we will see how she goes !
 

Autofire

Well-Known Member
GH is in bed with Monsato. Nobody should run that shit. They don't give f about the customer or the plant, are a mega corp in it purely for profit. Plenty of better stuff to choose from.

There's a really good YouTube vid where a professor dude gives a lesson on how to grow. He reckons the best fert is a basic 20-20-20 from seedling to harvest, and he was using jacks, growing in Coco with 50% vermiculite for silica.

Doesn't mean I listened. I still run expensive premium cannabis specific stuff because I like the company. Shit works pretty dam good too.
 

Rdubz

Well-Known Member
GH is in bed with Monsato. Nobody should run that shit. They don't give f about the customer or the plant, are a mega corp in it purely for profit. Plenty of better stuff to choose from.

There's a really good YouTube vid where a professor dude gives a lesson on how to grow. He reckons the best fert is a basic 20-20-20 from seedling to harvest, and he was using jacks, growing in Coco with 50% vermiculite for silica.

Doesn't mean I listened. I still run expensive premium cannabis specific stuff because I like the company. Shit works pretty dam good too.
So you run Advanced ? That's the expensive one that comes to mind lol
 

jonnynobody

Well-Known Member
I can't wait now , it's on Order just waiting for delivery.. I did end up getting the entire line with clone and Bloom figured I might as well.... The onl6 thing I need to do is walk into store for some Epson salt didn't buy that from Jack's obviously lol maybe I'll start a journal as well I'm just starting brand new aero system with the Jacks as soon as I get it and it will be a first time for Nutes and System so we will see how she goes !
Even if you don't start a journal stop by and let us know how jack's is doing for you. Congratulations on your new stock of top notch fertilizer on the cheap! Light speed ahead :)
 

Rdubz

Well-Known Member
I've been using jacks about 6 months outdoor. Its nice and simple for my busy work schedule but still produces good results. 1.8EC works good for me.
I could really use some nice and simple in my life right now ! Love it that's awesome I'm hearing so much good feedback ....
 

cobshopgrow

Well-Known Member
yes, could be that PK boosters are just there to give problems and filling your ppms unecessary.
i may skip them too.

GH is in bed with Monsato. Nobody should run that shit. They don't give f about the customer or the plant, are a mega corp in it purely for profit. Plenty of better stuff to choose from.

There's a really good YouTube vid where a professor dude gives a lesson on how to grow. He reckons the best fert is a basic 20-20-20 from seedling to harvest, and he was using jacks, growing in Coco with 50% vermiculite for silica.

Doesn't mean I listened. I still run expensive premium cannabis specific stuff because I like the company. Shit works pretty dam good too.
you refer to bugbee?
he is using a peat vermiculite mix as far i remember.
i think he uses 20 20 20 but he would prefer 20 10 20, at least he mentioned that the fertilizer companys should consider offering this.
hes a strong believer in low P and said he did studies proofing it.
he recomend a EC of 1.3 (incl his 0.3EC tap) and say everthing below 1.5 is no saltstress, therefore fine.
not agreeing in everything with him, he gives this 20% also in flower, as he say the buds need N too.
for sure not wrong, but i dont see heavy needs for N in flower myself and see more a potential problem.

probalby the hardest to learn for a grower is to learn to give only whats needed.
the feeding charts out there are no help in this regard, while not so seldon seeing people having good results with over 1000ppm.
if we would ask around which ppm/ec people use i guess we would have everything from 0.8-2.4 EC as result.
 
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thetruthoverlies

Well-Known Member
Jacks is good shit. I use to run it with their cal-nit. I like trying new shit from time to time though... My only gripe with jacks was the blue dye. Are they still putting the dye in it?

Had real good results in top drip DTW and a 25lb sack lasted long time.
 

Arkos

Well-Known Member
I don't think I'll shed a tear for those profiteering cocksuckers :)
1000%!

I used to use Floranova with excellent results mind you but I noticed they kept diluting it as the viscosity of it was lower in each bottle I bought and sure enough the e.c. was too.

I even emailed them at the time and they outright admitted it.

I've been using their floracoco now and just switched to megacrop, big difference, fuck this overpriced waterbottle bullshit...
 

Treesomewanted77

Well-Known Member
I have been using 19-4-23 from greencare with great results at one strength from start to finish super simple to mix up and holds steady ph but am thinking of trying the jacks brand but what is the better choice the 2 part mix with the cal nitrate or the single mix? The 19-4-23 is almost same price as jacks maybe a touch cheaper at $52 a 25lb bag but shipping makes it almost a 100 hoping jacks will be cheaper to have shipped being much closer to my location
 
I have been using 19-4-23 from greencare with great results at one strength from start to finish super simple to mix up and holds steady ph but am thinking of trying the jacks brand but what is the better choice the 2 part mix with the cal nitrate or the single mix? The 19-4-23 is almost same price as jacks maybe a touch cheaper at $52 a 25lb bag but shipping makes it almost a 100 hoping jacks will be cheaper to have shipped being much closer to my location
That's good!
 

TintEastwood

Well-Known Member
Still running Jacks without problems.

I too noticed P varies wildly, as do some others.
Approximate breakdowns for some common nute mixes.
Nute-PPM-Compare.PNG




Jacks RO - 321 compare. Approx. elemental PPM breakdowns.

RO-vs-Jacks321.png
 
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jonnynobody

Well-Known Member
I have been using 19-4-23 from greencare with great results at one strength from start to finish super simple to mix up and holds steady ph but am thinking of trying the jacks brand but what is the better choice the 2 part mix with the cal nitrate or the single mix? The 19-4-23 is almost same price as jacks maybe a touch cheaper at $52 a 25lb bag but shipping makes it almost a 100 hoping jacks will be cheaper to have shipped being much closer to my location
I think it really depends on your preference. The 1 part tap and RO formula are great. Simple. Effective. And dirt cheap. What the 3-2-1 system provides is supreme flexibility. Do you have a strain that's requiring much more calcium than your average strain? Increase the calcium nitrate. Problem solved. Want to decrease nitrogen towards flower? Decrease the calcium nitrate. Increase the 5-12-26. Have a strain that doesn't need much magnesium sulfate? Omit the epsom salt. Jack's 5-12-26 already has 6.3% magnesium sulfate. Some growers don't ever add the epsom salt to the 3-2-1 system. Without getting into the weeds jack's 5-12-26 is versatile, flexible, soluble, stable, consistent and great for any strain for these reasons if you're running a hydroponic system.

I'm planning to order the RO formula to test it out. There is no magnesium sulfate in the mix. Instead they use magnesium nitrate. I want to email jack's to find out if I can add epsom salt if needed. Other than that concern everything else looked right as rain to me on the ingredients and ratios and I would have no aversion to ordering it with confidence. I would recommend anyone to please buy the 25# bags instead of those smaller packs. Jack's is only cheap if you're buying it in the big bags. If you buy the small bags you're paying as much as a General Hydroponics product. I got a 5 gallon homer bucket with a gasket lid from home depot and toss my whole 25# bag right in there. I buy my epsom salt from walmart. Nobody else is cheaper. Equate brand. I get my calcium nitrate off of Amazon from PowerGrow. Dirt cheap.
 
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