3 days on jack's 5-12-26 and the plants are loving it! Bye bye General Hydroponics forever
- Thread starter jonnynobody
- Start date
Creature1969
Well-Known Member
To simplify, that's 3 parts Jacks, 2 parts CalNit, 1 part Epsom. It's the ratio that matters.
I use 3/4 tbsp Jacks, 1/2 tbsp CalNit, 1/4 tbsp Epsom (not in that order) per gallon then add water to drop to my desired EC.
That works for me hand watering coco. I can put half gallon of my nute mix and half gallon of water and know I have 1.2EC, every time.
I ain't got time to do the math and weigh shit to get to a desired EC in 4gal of water, especially when there's no need for such complication.
Keep it simple.
jonnynobody
Well-Known Member
Maximum solubility for the 5-12-26 is 2#/gallon
I can't remember for calnit but a quick google search will get you the answer. It's something like 560g/gallon. It's easy to find.
waterproof808
Well-Known Member
I've been thinking about making a concentrated stock solution with jacks as well. Seems like it would be a time saver in the long run, just pour out into a marked measuring cup and dump in your Rez...no waiting for salts to dissolve every time you mix nutrients.
Hello. I often see your posts and appreciate any info you share. I also use straight coco and ro water. I have been struggling with a veg recipe that works across the board. I'm just a little confused about what your doing in veg. Looks like you are using jacks at standard 321 ratios, but only using half gram/pg of Epsom?. Or are you saying this is your base, but you add cal and mag to this recipe late veg and early flower? Thanks
Rurumo
Well-Known Member
Some people don't add the full 3-2-1 amount of epsom, most people will do fine without it or with a reduced amount-there is still plenty of mag in the a/b. I run it very similar to Tint's recipe, but just shoot for more or less 600 ppm. Just have to watch it like a hawk during stretch.
TintEastwood
Well-Known Member
What Rurumo said.
@lcmon
For me, I also run Ca a little higher in veg by running cal prime for my calnit. (Slightly more Ca to N ratio.)
Then I keep Mg around half of Ca PPM.
If I really want less N, I lower the calnit and supplement with Calimagic.
It's YaraLive calnit in the small 321 kit I bought, do you know the Cal and N ppm?
TintEastwood
Well-Known Member
icetech
Well-Known Member
I went up from 1.7 to 2.0 EC recently.. plants seem happy with a bit more, was afraid of burn but nope.
.Smoke
Well-Known Member
I've been worried about burn a lot also. I think dropping the Calmag out has helped a ton in lowering my EC and allowed me to run more of the straight 3-2-1.
With the way things are looking I'm betting my next run will be pushing high 2's if not 3.0EC. Finally got a measurement and figured out I have a 910-1000 PAR spread over my canopy @ 680w (no Co2), so I'm sure the plants will enjoy a little more feed.
icetech
Well-Known Member
You are a madman going that high... i am curious how it will turn out
I use way less light though...P.S. one thing i know is jacks is WAY more forgiving than liquid nutes i used to use.. those fuckers would cook a plant fast
Samwell Seed Well
Well-Known Member
Jack's is great. Most brands, salt or bottle are decent. Some are better for certain applications then others... Jack's is a great all around, dry fertilizer.To simplify, that's 3 parts Jacks, 2 parts CalNit, 1 part Epsom. It's the ratio that matters.
I use 3/4 tbsp Jacks, 1/2 tbsp CalNit, 1/4 tbsp Epsom (not in that order) per gallon then add water to drop to my desired EC.
That works for me hand watering coco. I can put half gallon of my nute mix and half gallon of water and know I have 1.2EC, every time.
I ain't got time to do the math and weigh shit to get to a desired EC in 4gal of water, especially when there's no need for such complication.
Keep it simple.
waterproof808
Well-Known Member
So making jacks into a liquid concentrate has been a game changer. It's so much quicker to mix up a batch of nutrients and I'm not exposing the cal-nit to high humidity every time I feed.
Now I'm debating a doser set-up so I can just mix up 5 gallon barrels of Part A and B and then not having to mixing a rez at all.
Now I'm debating a doser set-up so I can just mix up 5 gallon barrels of Part A and B and then not having to mixing a rez at all.
kratosxxl
Well-Known Member
I use 4-2-1 in flower. Less nitrogen and never had claws.
Why not dissolve salts in cup of hot water then add to rez?
waterproof808
Well-Known Member
Because I already have months worth of concentrate that has been dissolved.