Just switched to Jack's 5-12-26 with great results

[2com]

wrong. bro science!!

But gRAnDmEistOrLeVEL?

Interesting. Your the first person I have heard say that. My plants seem perfectly happy with the mag included. No signs of mag excess.

What PPM's are you running?

Im the odd man out with my aero system. I never get above EC 0.5-0.6 or 250-300 PPM - and that includes my tap water at 100 PPM. A buddy of mine grows the most beautiful plants I have ever seen and he runs that same exact mix in F/D at about EC 0.8-1.0 IIRC.



Yes - if your like me and find the mag is needed or at least does no harm.

Thats also the correct order to add the nutes to your rez. One key thing is to allow the jacks to mix well, then add the Mag and let it mix thoroughly before adding the calnit. Then add the calnit slooooooowly to avoid any possibility of precipitation.

I'm not using calnit / "part 3" at the moment either.

Having an idea of the individual elements one is feeding is pretty key... and pretty easy to get.

I mix each part separately with a magnetic stirrer. Btw, there's always some 'crystals' at the bottom of the mag stirrers mixing container. It doesn't matter how long it's left to stir.

I swapped over to Jack's a couple weeks ago.
Have over $500 of M/C and GH Flora series collecting dust now.

Cleanest reservoirs ever.
Plant problems "fading away".

That's great, dude.

Doesnt Jacks also require 15.-5-5? Calcium Nitrate. I didnt read the complete thread.....

I know my Hydro Gardens Chem Grow
4-20-39 base formula requires 15.5-0-0 as part of the base formula. Makes it equal 19.5-20-39.... Calcium Nitrate has to be added 2nd in the mix after the base formula is thoroughly mixed.

After the CN Epsom Salts/Magnesium Sulfate is added for Mg, and Sulfur
Then in an 8 weeks flowering strain add MPK from weeks 2.5-5 after flip, and then boost the Epsom Salts weeks 5-6, and then cut in half in weeks 7-8.

Base formula is increased all the way through week 6. Then cut by 25% in week 7, then another 25% in week 8. In an 8 weeks flowering strain.

Chem Gro likes a PH of 6.2

Jacks 5-12-26 is paired with Calcium Nitrate, yup.

 

[jonnynobody]

Big Mike, is that you???? lmao

Jesus....Big Mike. I remember seeing a video of that ridiculous tweaker 10 or 15 years ago. He was interviewing some other 80 # cracked out tweaker about her garden and "how many pounds per light" she was getting. I can't even remember what shit he was hawking in the video, but I felt like I needed a shower afterwards. Big Mike and subcool are probably best friends

 

[2com]

@jonnynobody Hey dude, have you checked out Renfro's nutrient calculator thread? You can download it (excel spreadsheet), it's a valuable tool. Also, you can find several similar tools online for use.
Glad your grow is heading in a positive direction. The main thing I disliked about GH MB was that pink color staining everything. I was using it as a one part - like lucas ratio.

 

[jonnynobody]

Doesnt Jacks also require 15.-5-5? Calcium Nitrate. I didnt read the complete thread.....

I know my Hydro Gardens Chem Grow
4-20-39 base formula requires 15.5-0-0 as part of the base formula. Makes it equal 19.5-20-39.... Calcium Nitrate has to be added 2nd in the mix after the base formula is thoroughly mixed.

After the CN Epsom Salts/Magnesium Sulfate is added for Mg, and Sulfur
Then in an 8 weeks flowering strain add MPK from weeks 2.5-5 after flip, and then boost the Epsom Salts weeks 5-6, and then cut in half in weeks 7-8.

Base formula is increased all the way through week 6. Then cut by 25% in week 7, then another 25% in week 8. In an 8 weeks flowering strain.

Chem Gro likes a PH of 6.2

Yes calcium nitrate is the second component of Jack's 5-12-26. I reduce the calcium nitrate around week 6 of flower as ripening begins.

 

[rkymtnman]

I almost bought the jack's RO formula. I opted for the 5-12-26 due to flexibility with the separation of the elements. However, that 1 part looks very attractive and I trust Jack's to get the formula correct where all of the elements dissolve and stay into solution. How are your plants doing with the RO formula? What PPM are you running it at, and are you supplementing the mix with anything else? I might have to give it a try one of these days as an experiment. Convenience is very appealing. I am doing this cycle with Jack's 5-12-26 and calcium nitrate only. No add on products at all.

so i tried Tap formula first since i use well water. had massive pH drops after maybe 3 or 4 days. contacted JR Peters and they were surprised by it. they sent me a free bag of the RO formula and it works great. pH stable for 7 + days .

0.2 is the well, 0.5 of nutes so 0.7 total. i do DTW Waterfarms and feed once a day.

once i got the RO formula going well, i just started adding a humic/fulvic/seaweed and amino powder from Kelp4less. it drops my pH (expected since it contains acid: humic) but it still stays fairly steady for 2 days before i have to add pH UP.

so far i love it: 3-1-4 ratio is by far better than the Lucas 1-2-2 . leaves are green and healthy until chop.

so yeah, give it a try someday.

 

[jonnynobody]

@jonnynobody Hey dude, have you checked out Renfro's nutrient calculator thread? You can download it (excel spreadsheet), it's a valuable tool. Also, you can find several similar tools online for use.
Glad your grow is heading in a positive direction. The main thing I disliked about GH MB was that pink color staining everything. I was using it as a one part - like lucas ratio.

I've never used a nutrient calculator. Renfro has one of the finest personal indoor gardens I've ever seen, and I would respect any advice that came out of him. I don't get into nutrient calculators though

 

[2com]

so i tried Tap formula first since i use well water. had massive pH drops after maybe 3 or 4 days. contacted JR Peters and they were surprised by it. they sent me a free bag of the RO formula and it works great. pH stable for 7 + days .

0.2 is the well, 0.5 of nutes so 0.7 total. i do DTW Waterfarms and feed once a day.

once i got the RO formula going well, i just started adding a humic/fulvic/seaweed and amino powder from Kelp4less. it drops my pH (expected since it contains acid: humic) but it still stays fairly steady for 2 days before i have to add pH UP.

so far i love it: 3-1-4 ratio is by far better than the Lucas 1-2-2 . leaves are green and healthy until chop.

so yeah, give it a try someday.

Wow, that's cool of them.

Tap formula? RO formula? This is new to me. I wonder what the difference is (elemental), perfect use for a nutrient calculator. Must've happened right after the new additions that came just prior, at the time of the 'new look' bag...?

RO 12-4-16
Tap 15-5-20
'Standard" 5-12-26 (+ 15-0-0)...(I should know this but, does this mean at proper ration (3/2/1) that the npk using "jacks 3-2-1" recipe is 20-12-26?)

I'm confused on the reasoning and thinking it has to be more than just "what is present or missing from the starting water", like "what effect does the presence or lack of this particular element/ion in the starting water have on the solution" if that makes sense.
Eg: RO water has less in it to start with, so why are there less inputs/elements in the RO formula?
Both Tap and RO formula have less than half the phosphorus?? What? Why?
I know there's other differences that pertain to the RO and Tap specifications (calcium, magnesium, etc.) but the ones that strike me are the NPK changes.

I don't get quite get it...
Also, if these two new formulations are for RO and Tap water, what is the shit I've been using for then? Hahaha.
It's nice to have options though, cool.

@TintEastwood What do you think about this?

Green Leaf Nutrients: Alight, fine - lets make a two/three part just like Jack's then.
JR Peters: Alright, fine, lets make a one part just like GLN then.

 

[2com]

I've never used a nutrient calculator. Renfro has one of the finest personal indoor gardens I've ever seen, and I would respect any advice that came out of him. I don't get into nutrient calculators though

Fair enough

 

[jonnynobody]

so i tried Tap formula first since i use well water. had massive pH drops after maybe 3 or 4 days. contacted JR Peters and they were surprised by it. they sent me a free bag of the RO formula and it works great. pH stable for 7 + days .

Now that's professional service my friend! Also reason #101 why jacks rocks. General hydro's cust service would laugh their way right outta that conversation. Free replacement? Keep dreaming buddy

 

[rkymtnman]

I don't get quite get it...
Also, if these two new formulations are for RO and Tap water, what is the shit I've been using for then?

lots of questions, some i have answers for. the ro and tap were made specifically for cannabis/hemp. i guess JRPeters realized that they were missing the market share now that MJ is legal in a lot of states?

yes, the cal/mg are both higher in the ro formula. i don't know why the difference in NPK but the 3-1-4 ratio is the same. and for the less P, alot of the nute stuff i've read over the last year or so that P "should" be in the 40 to 60ppm range (elemental).

you should email them: i think the guy i've dealt with is Dan (?) and he was super helpful explaining stuff to me. another difference is that the Tap formula was more acidic and the RO more basic which explained the pH drop i got with the tap formula.

hope that helps somewhat.

 

[rkymtnman]

Now that's professional service my friend! Also reason #101 why jacks rocks. General hydro's cust service would laugh their way right outta that conversation. Free replacement? Keep dreaming buddy

i agree: the last time i tried to contact GH, the rep i talked with knew less than i do about nutes. lol.

but yeah, like @.Smoke , now i have alot of GH product to use on my lawn this season!!!!

 

[rkymtnman]

oh yeah, @2com , i also emailed them my well water analysis for them to look at to make sure nothing was out of whack. Dr Peters herself answered that email from me.

 

[newbplantgrower420]

Im trying the RO formula rn in veg with my tap water and so far so good.

pH is rock solid.

You still do need epsom salt for the extra mag though. Both my strains are showing slight mag deficiency but thats all. I thought it not having sulfur in it would cause some sort of sulfur deficiency but thats not the case

 

[kovidkough]

has anyone but me separated the MC 1 part v3.

I am experimenting with different amounts but it seems 2gs calnit, 2gs rest of the "stuff"+1g Epsom is fine for veg and in flower I just lower the calnit by 1g and 1.5g for deep flower.

not sure if this is all just extra work for me.
might also become a jacks fan I pretty much turned my mc into jacks , just experimenting not sure if anyone has tried this

 

[2com]

lots of questions, some i have answers for. the ro and tap were made specifically for cannabis/hemp. i guess JRPeters realized that they were missing the market share now that MJ is legal in a lot of states?

yes, the cal/mg are both higher in the ro formula. i don't know why the difference in NPK but the 3-1-4 ratio is the same. and for the less P, alot of the nute stuff i've read over the last year or so that P "should" be in the 40 to 60ppm range (elemental).

you should email them: i think the guy i've dealt with is Dan (?) and he was super helpful explaining stuff to me. another difference is that the Tap formula was more acidic and the RO more basic which explained the pH drop i got with the tap formula.

hope that helps somewhat.

Yea, definitely why the got all "on board" with the "cannabis nutrients".

Dude, I was thinking the exact same thing looking at those P numbers. And I'm wondering if too much P is one of possibly several reasons I'm seeing what might be some kind of antagonism (not affecting the plant too much I don't think, but causing silly amounts of salt crust on plastics, etc.. that and low humidity/calcium).

It's interesting...the "new bag" 5-12-26 is actually a slightly different formula (very very minor changes) than the old bag, but they didn't advertise anything. Never mind that though.

Thanks man.

 

[2com]

Im trying the RO formula rn in veg with my tap water and so far so good.

pH is rock solid.

You still do need epsom salt for the extra mag though. Both my strains are showing slight mag deficiency but thats all. I thought it not having sulfur in it would cause some sort of sulfur deficiency but thats not the case

Maybe they should have chosen a different naming scheme then? Haha.

 

[2com]

oh yeah, @2com , i also emailed them my well water analysis for them to look at to make sure nothing was out of whack. Dr Peters herself answered that email from me.

By the way, I just realized you must be quite the Ricky Martin fan.

 

[rkymtnman]

And I'm wondering if too much P

i first learned about the too much P issue at thcfarmer ( i think, it's been awhile) but alot of the posters all said the same thing: most nutes use way too much P. and then you add a PK booster and it really throws shit out of whack.

 

[rkymtnman]

By the way, I just realized you must be quite the Ricky Martin fan.

i've heard of him but never heard him. what did i say that makes me a fan?? now i'm curious! lol.

 

[kovidkough]

i've heard of him but never heard him. what did i say that makes me a fan?? now i'm curious! lol.

lol it's rocky mountain man not Ricky Martin man hahaha