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

Fuckingatodeaso

Fuckingatodeaso

Member
Being that I go from clone to veging for 5 days or so before the flip I don't think I'll have enough calcium reserves to use the 10-30-20 with out the cal nit. I'll do a 5-12-26 plus cal nit and ultra violet pending on plugging it into a nutrient calculator and what the people at jacks say about it. They might tell me to go 10-20-30 plus a little cal nit.
 
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jonnynobody

Well-Known Member
Fuckingatodeaso said:
Being that I go from clone to veging for 5 days or so before the flip I don't think I'll have enough calcium reserves to use the 10-30-20 with out the cal nit. I'll do a 5-12-26 plus cal nit and ultra violet pending on plugging it into a nutrient calculator and what the people at jacks say about it. They might tell me to go 10-20-30 plus a little cal nit.
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Peters told me 10-20-30 is not compatible with calcium nitrate. I didn't ask any further questions about the nature of the interaction, but I suspect something will precipitate out. Probably calcium sulfate. For your unique situation where you have a non existent veg cycle I'd just run 3-2-1 then the finish formula for the last 2 weeks.
 
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jonnynobody

Well-Known Member
Fuckingatodeaso said:
I might just order pure monopotassium phosphate from customhydronutrients.com for one side and do regular 3-2-1 on the other.
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That's what GreenGene used. You can't go wrong with pure MKP for a flower boost. And you can add it right to your 3-2-1 mix. No compatibility issues. Cheap too!
 
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jonnynobody

Well-Known Member
I just calculated how much 7-15-30 I'll be consuming per week @ 5g/gallon x 147gallons the flower room takes over the course of 7 days =735g. I'm glad I got the 25# bag! That's 1470g over the 2 week period each flower cycle which is 3.28# I'm looking forward to running it and sharing my results.
 
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newbplantgrower420

Well-Known Member
gonna order a 2.2lb bag of the 7-15-30 and give it the last 2 weeks comparing it the ro formula.

i dont have high hopes though. i want to see if theres a visual difference of extra resin or smell from all that extra sulfur or maybe bigger nugs from the low n and higher p and k last 2 weeks. if theres no visual difference ill just stick to my simple regimen. its solid as is
 
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jonnynobody

Well-Known Member
newbplantgrower420 said:
gonna order a 2.2lb bag of the 7-15-30 and give it the last 2 weeks comparing it the ro formula.

i dont have high hopes though. i want to see if theres a visual difference of extra resin or smell from all that extra sulfur or maybe bigger nugs from the low n and higher p and k last 2 weeks. if theres no visual difference ill just stick to my simple regimen. its solid as is
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The science behind the formula makes sense. It's not just about adding the 7-15-30 as it is about completely changing the nutritive profile. When looking at the 3-2-1 feed chart you can see they eliminate the calcium nitrate and 5-12-26 completely. Gone. Out the window. All that remains is the 7-15-30 and epsom salt. Elevated P and very high K content with lots of magnesium sulfate. Everything the plant needs to ripen. Another grower here used it and had some positive things to say: https://rollitup.org/t/hso-green-crack-rdwc.1036861/page-2#post-16259139

I ordered 2 days ago and the Peters website still shows processing, but my order from 2 years ago still says processing also. Hopefully it shows up Monday because I only have about 13 days of flower left. Don't wanna miss my chance to test it out right away :)
 
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newbplantgrower420

Well-Known Member
jonnynobody said:
The science behind the formula makes sense. It's not just about adding the 7-15-30 as it is about completely changing the nutritive profile. When looking at the 3-2-1 feed chart you can see they eliminate the calcium nitrate and 5-12-26 completely. Gone. Out the window. All that remains is the 7-15-30 and epsom salt. Elevated P and very high K content with lots of magnesium sulfate. Everything the plant needs to ripen. Another grower here used it and had some positive things to say: https://rollitup.org/t/hso-green-crack-rdwc.1036861/page-2#post-16259139

I ordered 2 days ago and the Peters website still shows processing, but my order from 2 years ago still says processing also. Hopefully it shows up Monday because I only have about 13 days of flower left. Don't wanna miss my chance to test it out right away :)
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it does make sense. just ordered a 2.2lb bag to test a side by side. ill give it the last 2 weeks on one side of my room and see what happens.

it should arrive just on time for me to hit it at w7 of flower.


btw what are you keeping these 25lb bags of powder in? i use 5gal buckets with the gamma seal lids but the lids are pricy.... like 12 bucks a pop maybe i should just keep them in the 25lb bags they provide....
 
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jonnynobody

Well-Known Member
newbplantgrower420 said:
it does make sense. just ordered a 2.2lb bag to test a side by side. ill give it the last 2 weeks on one side of my room and see what happens.

it should arrive just on time for me to hit it at w7 of flower.


btw what are you keeping these 25lb bags of powder in? i use 5gal buckets with the gamma seal lids but the lids are pricy.... like 12 bucks a pop maybe i should just keep them in the 25lb bags they provide....
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I use a 5 gallon bucket and a lid with inset gasket for $1.78 @ home depot for my jack's 5-12-26. I'll use the same for the finish formula. Cheap and effective :)
www.homedepot.com

The Home Depot 5 gal. Orange Paint Bucket Lid 5GLD ORANGE LID for 5GL HOMER PAIL - The Home Depot

The 5 gal. Homer Leakproof Lid is made of plastic material. This lid has a special design for leak resistance and contains a gasket to seal in liquid. The Home Depot orange color is an ideal match the
www.homedepot.com
 
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Treesomewanted77

Well-Known Member
Check out the thread coco potting up on here. It shows some results using 19-4-23 start to finish. I’m pretty sure the guy uses sunshine #4 advanced and watered 3 times a day with 20% runoff but the guy who posted his results can explain it better he has been using that system for many yrs now with great results
 
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newbplantgrower420

Well-Known Member
jonnynobody said:
I use a 5 gallon bucket and a lid with inset gasket for $1.78 @ home depot for my jack's 5-12-26. I'll use the same for the finish formula. Cheap and effective :)
www.homedepot.com

The Home Depot 5 gal. Orange Paint Bucket Lid 5GLD ORANGE LID for 5GL HOMER PAIL - The Home Depot

The 5 gal. Homer Leakproof Lid is made of plastic material. This lid has a special design for leak resistance and contains a gasket to seal in liquid. The Home Depot orange color is an ideal match the
www.homedepot.com
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very nice. so i decided im going to switch from the ro formula jacks cause of the blue stains its leaving everywhere.

as far as concentrates how do i go about making them? ive dealt with powders for the past few yrs but never made concentrates.

for jacks 5-12-26 i make a 1:100 concentrate right
360 grams in 1 gallon of ro. then how much of that do i pour in my 70gal rez to get the correct ec for part A?
 
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jonnynobody

Well-Known Member
newbplantgrower420 said:
very nice. so i decided im going to switch from the ro formula jacks cause of the blue stains its leaving everywhere.

as far as concentrates how do i go about making them? ive dealt with powders for the past few yrs but never made concentrates.

for jacks 5-12-26 i make a 1:100 concentrate right
360 grams in 1 gallon of ro. then how much of that do i pour in my 70gal rez to get the correct ec for part A?
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Referenced from earlier in the thread:

In case you don't care for weighing out dry fertilizer when using jack's 3-2-1 you can instead make concentrated stock solutions out of jack's 5-12-26 and calcium nitrate. Then you can add each to your reservoir by ppm using a simple tds meter. Nice and easy. A lot of 3-2-1 growers omit the magnesium sulfate, because jack's is loaded with it at 6.3%. Always maintain the J.R. Peters recommended ratio of jack's 5-12-26 to calcium nitrate at 1/.67 jack's/calcium nitrate and you won't have any issues.

600 ppm is 360 ppm jacks and 240 ppm calcium nitrate 240/360=.67

750 ppm is 450 ppm jacks and 300 ppm calcium nitrate 300/450=.67

900 ppm is 540 ppm jacks and 360 ppm calcium nitrate 540/360=.67

Jack's 5-12-26 stock solution recipe:

Dissolve 880 grams Jack's 5-12-26 in 1 gallon of RO water in a milk jug. Use hot water if possible. Cold RO works fine. It just takes a bit longer to fully dissolve. Some occasional shaking over a day or so and the stock solution will fully dissolve. You now have a concentrated stable stock solution of Jack's 5-12-26.

Calcium nitrate stock solution recipe:

Dissolve 580 grams calcium nitrate in 1 gallon RO water in a milk jug. Use hot water. The calcium nitrate mixes into solution fairly quickly. You now have a concentrated stock solution of calcium nitrate.

I recommend filling smaller more convenient containers with your stock solution using a funnel. I love the old dish soap concentrate bottles. Very heavy duty and I love the flip cap with the squirt style dispenser. Or 16oz squeeze bottles. Whatever floats your boat.
 
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jonnynobody

Well-Known Member
I actually just began experimenting with 1.3 EC on my very large critical mass. She has showed signs of tip burn the closer she's gotten to the lights. She's over grown due to planning error on my part so she's going through two 8 week veg cycles. Dam thing is just too big and the branches are too close to the lights. Many long time growers swear by 1.3 EC start to finish with jack's 321. I thought, what the hell? Why not give it a shot? The rest of my garden is still on 1.6 EC. If 1.3 EC keeps them happy then it is what it is. I'll report back in a few days how critical mass is enjoying her 1.3 EC.
 
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newbplantgrower420

Well-Known Member
jonnynobody said:
Referenced from earlier in the thread:

In case you don't care for weighing out dry fertilizer when using jack's 3-2-1 you can instead make concentrated stock solutions out of jack's 5-12-26 and calcium nitrate. Then you can add each to your reservoir by ppm using a simple tds meter. Nice and easy. A lot of 3-2-1 growers omit the magnesium sulfate, because jack's is loaded with it at 6.3%. Always maintain the J.R. Peters recommended ratio of jack's 5-12-26 to calcium nitrate at 1/.67 jack's/calcium nitrate and you won't have any issues.

600 ppm is 360 ppm jacks and 240 ppm calcium nitrate 240/360=.67

750 ppm is 450 ppm jacks and 300 ppm calcium nitrate 300/450=.67

900 ppm is 540 ppm jacks and 360 ppm calcium nitrate 540/360=.67

Jack's 5-12-26 stock solution recipe:

Dissolve 880 grams Jack's 5-12-26 in 1 gallon of RO water in a milk jug. Use hot water if possible. Cold RO works fine. It just takes a bit longer to fully dissolve. Some occasional shaking over a day or so and the stock solution will fully dissolve. You now have a concentrated stable stock solution of Jack's 5-12-26.

Calcium nitrate stock solution recipe:

Dissolve 580 grams calcium nitrate in 1 gallon RO water in a milk jug. Use hot water. The calcium nitrate mixes into solution fairly quickly. You now have a concentrated stock solution of calcium nitrate.

I recommend filling smaller more convenient containers with your stock solution using a funnel. I love the old dish soap concentrate bottles. Very heavy duty and I love the flip cap with the squirt style dispenser. Or 16oz squeeze bottles. Whatever floats your boat.
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gotcha. so how would i go about calculating how much of those concentrates to pour into a 70gal rez to reach full strength jacks?

is there a way to use some maths for it or just trial and error to achieve the desired jacks and calc nit ppm
 
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jonnynobody

Well-Known Member
newbplantgrower420 said:
gotcha. so how would i go about calculating how much of those concentrates to pour into a 70gal rez to reach full strength jacks?

is there a way to use some maths for it or just trial and error to achieve the desired jacks and calc nit ppm
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Use 1 gallon of RO water to get a baseline. Add 10ML of jack's? What's your ppm? From there you can do a little math to determine how many ml of jack's you need per gallon to achieve the ratio you desire. Once you determine your ml's per gallon of stock solution it takes to achieve your desired ppm you just multiply that number times 70 to figure out how many ml's of jack's stock solution it takes to reach your target ppm for your 70 gallon res. I eventually determined powders were easier for me. I tried the stock solutions a few times and I went back to weighing my powders. Just my preference. No other reason.
 
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newbplantgrower420

Well-Known Member
jonnynobody said:
Use 1 gallon of RO water to get a baseline. Add 10ML of jack's? What's your ppm? From there you can do a little math to determine how many ml of jack's you need per gallon to achieve the ratio you desire. Once you determine your ml's per gallon of stock solution it takes to achieve your desired ppm you just multiply that number times 70 to figure out how many ml's of jack's stock solution it takes to reach your target ppm for your 70 gallon res. I eventually determined powders were easier for me. I tried the stock solutions a few times and I went back to weighing my powders. Just my preference. No other reason.
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i see. so ill make the stock and test it out.

im just tired of weighing it out 1 by 1 for my 4 70 gal rez's every time. it has gotten easier though lately cause ive been using boiling hot water. it mixes much easier than using room temperature water.
 
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Atomizer

Well-Known Member
Stock solutions should be made very accurately to ensure repeatable results. Weigh 1000g of RO, pour it into a clear container and mark the level. Tip it out, add 100g of jacks to the container and add RO up to your 1L mark. Wait for the chems to dissolve completely and then top back up to your 1L mark. 10ml of this stock solution will contain 1g of jacks. Do the same for the calcinit but add 67g. 10ml of the stock will contain 0.67g of calcinit. For 1 gallon stocks you would add 378.5g of jacks and 253.6g of calcinit. 10ml of each stock will give the same 1g and 0.67g. 70 gallons is about 265L so if you needed to add 1g/L of jacks and .67g/L of calcinit you`d add 2.65L of each stock to the res. Note, the res should be at least 5.3L short of full to account for the stock volume or your ppm calculations will be adrift. If you mark the 70 gal level on the res you can top it up to the mark after adding the stocks. You`ll need 10.6L (2.8 gal) of each stock solution to dose 4x 70 gal reservoirs at the 1g/L, 0.67g/L rate. Depending on the solubility of jacks you could use 1:200 stocks. To figure the ppm you`d add 10ml of the jacks stock to a container and topup to the 1L mark with RO. The resulting ppm will be for 1g/L of jacks .From that result you can calculate the amount you need to add for any ppm. For example, if the result came in a 100ppm you know that 1ml/L will add 10ppm, 0.5ml/L will add 5ppm. Do the same for the calcinit.
 
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jonnynobody

Well-Known Member
Atomizer said:
Stock solutions should be made very accurately to ensure repeatable results. Weigh 1000g of RO, pour it into a clear container and mark the level. Tip it out, add 100g of jacks to the container and add RO up to your 1L mark. Wait for the chems to dissolve completely and then top back up to your 1L mark. 10ml of this stock solution will contain 1g of jacks. Do the same for the calcinit but add 67g. 10ml of the stock will contain 0.67g of calcinit. For 1 gallon stocks you would add 378.5g of jacks and 253.6g of calcinit. 10ml of each stock will give the same 1g and 0.67g. 70 gallons is about 265L so if you needed to add 1g/L of jacks and .67g/L of calcinit you`d add 2.65L of each stock to the res. Note, the res should be at least 5.3L short of full to account for the stock volume or your ppm calculations will be adrift. If you mark the 70 gal level on the res you can top it up to the mark after adding the stocks. You`ll need 10.6L (2.8 gal) of each stock solution to dose 4x 70 gal reservoirs at the 1g/L, 0.67g/L rate. Depending on the solubility of jacks you could use 1:200 stocks. To figure the ppm you`d add 10ml of the jacks stock to a container and topup to the 1L mark with RO. The resulting ppm will be for 1g/L of jacks .From that result you can calculate the amount you need to add for any ppm. For example, if the result came in a 100ppm you know that 1ml/L will add 10ppm, 0.5ml/L will add 5ppm. Do the same for the calcinit.
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This is a man that understands the metric system. Pay attention :)
 
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jonnynobody

Well-Known Member
Just got this from Peter's customer service. Kinda shocked by the maximum solubility of the calcium nitrate. 11lbs/gallon? Shit. That's a lot!

The Part A 5-12-26 limit of solubility is 2lb/gallons.

The Part B 15-0-0 limit of solubility is 11lb/gallons.
 
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Atomizer

Well-Known Member
You should be ok with a 1: 200 jacks stock as long as its not kept below 20C/68F. The calcinit solubility is no problem, 1200g per litre @ 20C.
 
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