A question for the growers using Jacks 5-12-26

[McKush]

Hi Rabbi -

The ratio is important but you also must consider the concentration which is usually expressed in PPM or some people use EC. The type of grow system could play a factor as well. I recirculate on a timer and top off res' with a float valve and bulk res.

Many people, myself included, use RO/DI water and 600 PPM from veg thru flower. For seed starts ill cut that to 300 or so till they get put into my media then 600 till chop. First couple of days from germ i just ro and a few drops of starter solution mixed in a gal jug.

If you find after a time the strain needs a bit more then increase it but i dont find that necessary and my plants dont get burned.

I went from MB to jacks and havent looked back. dont understand why some are so tied up with the fert subject. Jacks is quite complete. You can supplement it if you like also i dont tho.

 

[Rabbi]

Hi Rabbi -

The ratio is important but you also must consider the concentration which is usually expressed in PPM or some people use EC. The type of grow system could play a factor as well. I recirculate on a timer and top off res' with a float valve and bulk res.

Many people, myself included, use RO/DI water and 600 PPM from veg thru flower. For seed starts ill cut that to 300 or so till they get put into my media then 600 till chop. First couple of days from germ i just ro and a few drops of starter solution mixed in a gal jug.

If you find after a time the strain needs a bit more then increase it but i dont find that necessary and my plants dont get burned.

I went from MB to jacks and havent looked back. dont understand why some are so tied up with the fert subject. Jacks is quite complete. You can supplement it if you like also i dont tho.

Thx McKush. Yes I've been doing the r/o water and running 600ppm from start to finish. Things look great/normal after 1-2 weeks of flowering but look like they are lacking nitrogen before that point. Guess I'll have to try it(ratio change) out myself to find out. It's not huge or anything but noticeable. I went back to A/N for veg because that's what I use to use before Jacks and it was immediately better. I'm assuming it needs more cal/nit but I could be wrong.

 

[SecondAttempt]

How are you measuring? volume? weight? Did you make stock solutions? If by weight that's probably your problem... I went through something similar before I switched to equal volumes of each.

 

[Rabbi]

How are you measuring? volume? weight? Did you make stock solutions? If by weight that's probably your problem... I went through something similar before I switched to equal volumes of each.

I make stock solution. 880grams/per 1 gallon of hydro and 580grams/per 1 gallon of cal/nit. Than I pour an equal amount of each in my rez until I have 600ppm. I'm thinking if I up the cal/nit and lower the hydro(while still keeping things at 600ppm) things might get better.

Again this would only be for veg. Things look fine in flower.

 

[Ichabod Crane]

Try giving it a little epson salts to green it up.

 

[Rabbi]

Try giving it a little epson salts to green it up.

Interesting, thx.

 

[dr-dank]

could use advice: jacks v 6/9 lucas-lucas winning

could use advice: jacks v 6/9 lucas-lucas winning

Hey all. In coco, DTW, using blumat auto water to extend time between top waterings that are intended to keep salts from building up.

Around the time I added BM I switched from h3ads 6/9 lucas to the jacks hydro + cal nit. I noticed that plants did not seem as nice, so I ran an experiment with two clones that I am hand watering. No BMs, and one gets 6/9 lucas while other gets 1/.67 jacks calnit. Both PH to 5.8, both ~ 600 PPMs. Start with RO water.

For the jacks I mix 220g hydro and 147g of calnit into separate quart containers, shake like hell, then use 10ml each for my feed. I have noted that the hydro does leave some undissolved particles. Even with near boiling water and much shaking...

So, the same everything, except the feed solution, and the lucas subjects is 1-2 weeks farther along. Same clone/strain, media, room, temp, humidity, grower, just the feed solution differs.

Looks to me like jacks is leading to a mag deficiency or lockout.

The jacks test plant, shown first, is a week or so behind the lucas. Edited to add a pic of the material that never dissolved in my quart bottle for the hydro. Maybe that is all the Mg?

 

[packerfan79]

I tried Jacks for a run for some reason the plants just wouldn't flower they stretched for 5 weeks, until I got pissed and switched to 6 and 9. They instantly started popping pistils. I would use Jacks for veg but not for flower. I don't know if I had a bad batch or what. I know people here get good results but not me

 

[dr-dank]

Thanks packerfan...

So odd. I really, really, wanted to like jacks. Afraid to just add epson (mag sulfate) as seems has enough already. Like too much K locking it out or something.

Gonna go compare those ppm charts a bit.

 

[Dr.RedWhite]

Hey all. In coco, DTW, using blumat auto water to extend time between top waterings that are intended to keep salts from building up.

Around the time I added BM I switched from h3ads 6/9 lucas to the jacks hydro + cal nit. I noticed that plants did not seem as nice, so I ran an experiment with two clones that I am hand watering. No BMs, and one gets 6/9 lucas while other gets 1/.67 jacks calnit. Both PH to 5.8, both ~ 600 PPMs. Start with RO water.

For the jacks I mix 220g hydro and 147g of calnit into separate quart containers, shake like hell, then use 10ml each for my feed. I have noted that the hydro does leave some undissolved particles. Even with near boiling water and much shaking...

So, the same everything, except the feed solution, and the lucas subjects is 1-2 weeks farther along. Same clone/strain, media, room, temp, humidity, grower, just the feed solution differs.

Looks to me like jacks is leading to a mag deficiency or lockout.

The jacks test plant, shown first, is a week or so behind the lucas. Edited to add a pic of the material that never dissolved in my quart bottle for the hydro. Maybe that is all the Mg?

Jacks is a bit high in Potassium to use in coco. It doesn't always cause problems but the potential for a lockout is there. Works better with a peat based media.

 

[packerfan79]

Don't let me stop ya, I hear great things, just couldn't keep working at it. I have a lot on the line for my crops. So if something doesn't work for me I usually try twice. this time I just switched to 6 and 9, I finished out with my best crop and yield but it ran almost a month longer than normal. I have stuck with gh for a while. I am thinking canna on this next round

 

[dr-dank]

I ended up with an unexpected res drain, so f-it. Switching back to 6/9.

Cheers all.

 

[jrmedic]

Great thread.

Thinking of giving Jack's/CaNO3 a try with my water which is 0.5 EC, alkalinity about 200 and Ca 70ppm. Shooting for 1.2 final EC I would add 210ppm Jack's and 140ppm CaNO3. Does this sound about right? Seems like it wouldn't be enough feed.

Hoping to avoid using RO water if I can ...

 

[Learning101]

Rabbi did you ever fix the issue?

 

[2000pm]

For the jacks I mix 220g hydro and 147g of calnit into separate quart containers, shake like hell, then use 10ml each for my feed. I have noted that the hydro does leave some undissolved particles. Even with near boiling water and much shaking...

I haven't used it yet but my stock solution mixed to those exact ratios, yielded the exact same results (hot water, tons of shaking, couldn't get it fully dissolved).

edit: remade the stock solution with distilled water, room temp and it took 3 days but finally fully dissolved. Going through it faster than I thought I would be but it is doing the job pretty well.

Despite people saying otherwise, I am finding I have to add additional Mg and upped the ppms to around 750 or so (hand-watering in coco)

 

[Budley Doright]

I have a question for those who use this...

Is there any problem with doing this....

I have a 44 gallon container that I get my nutes from....


Can I mix this stuff to say 2000 ppm


Then simply dilute by adding water until it hits 600???? or whatever ppm???

In a smaller container....say 10 gallons.....

Or is there some difference in doing it this way that my dumb ass doesnt see???

 

[dr-dank]

I have a question for those who use this...

Is there any problem with doing this....

I have a 44 gallon container that I get my nutes from....


Can I mix this stuff to say 2000 ppm


Then simply dilute by adding water until it hits 600???? or whatever ppm???

In a smaller container....say 10 gallons.....

Or is there some difference in doing it this way that my dumb ass doesnt see???

I see no reason as long as you keep the mixes separate. When I used I had a strong mix (not sure of ppm), but when I added 10Ml of each to 1G it was diluted to 600 ppm.

If you combine the two at a high ec I would fear lockup and salt precipitation.

 

[Budley Doright]

I will be mindful that the larger less diluted container.... doesnt precipitate anything out of the mixture..... it dissolves fully........ then from there Its simple water dilution.....

 

[peps619]

1;.67 all the way or use Bloom only for flower?

1;.67 all the way or use Bloom only for flower?

Hello everyone. Been lurking for years, had to sign up to ask a question i havent got a close to suff. answer. Hope i can get it from u guys. And i've read the whole thread..
SO: should i....
1. Use only Jack's Hydro + Calnit from veg to flower 1:.67 Beg-END (peeps say has no ill effect on flowering stage)

2. Use Jack's Hydro + calnit until Flower flip. (some say to drop the calnit 50% - 0% when switching due to Small nug formation and to use more jack's to raise nute strength to acheive proper ppm ec? or maintain the reg jack dosage just without the calnit? which will obv lead to a lower ppm/ec)

or
3. Drop Jack's Hydro + Calnit and run only Jack's Bloom Booster 10-30-20 when flipping to flower???

Please clarify on this since i dont want baby nugs due to too much Nitro.. or clarification for each option..
Im sure some are prolly thinking the same thing.. Thanks in Adv!
-Peps

 

[brizzle_e]

I use the stock solution formula, 10ml/gal each, start to finish and the results are great. Being this is my first grow, all I can say is if they were better, I wouldn't know how to contain myself with the results. The Jacks is very, very impressive. Also I run at about 600ppm as well. Plants seem to love it, with no bad signs. Well no bad signs with nutrients. My GSC did fall over, so I really wish I had built a scrog for it. I will find the link for the stock solution formula and post it for you as well. Also I didn't use any additives or "Magic" juice. Just Jacks and PH up/down, and R/O water.