Jacks Professional Hydroponic 5-12-26 + Calcium Nitrate Comparison Grow - Help!

I am just starting to discover the interesting works of fatman and his advocacy on mixing your own nutes. I must say this stuff is super complicated and very intimidating....yet I want to do a comparison grow.

I plan on doing a side by side with:

1) AN connie + their common additives
2) Dyna-Gro grow + bloom + pro-tekt + mag-pro
3) Jacks Professional Hydroponic 5-12-26 + Calcium Nitrate

All of this will be done in drain to waste coco. I obviously have the first 2 down, but need help in how to go about doing the Jacks, specifically in coco.

Do i just get a gallon jug put X amount of jacks in it and X amount of Calcium Nitrate and call it a day...if so at what amounts?

Due to coco's inherent properties, does this recipe need to be tweaked at all?

Do those of you already using this Jacks + cal nitrate use this formula all through veg and bloom? Or do you use something else during veg?

Use equal amounts by volume. If you have a EC meter you can fill your tank with RO, then bring the EC to say 1.0 with just the jacks pro then multiple than by 1.67 to get your target EC with the calc nit. In this example it would be 1.67 x 1 = 1.67.

So you add water and jacks to get to 1.0, then add calc nit to get to 1.67.

you are using 67% by EC of calc nit. It works out to equal amoujnts by volume. I usually get my water and put a few scoops of each, then add a bit more water to get my EC where I want it.

I use this from veg to bloom. My goal is to let the plants dictate the EC I give. I want my runoff to be about equal to what goes in. The number usually climbs as plants get larger, tyhen climbs more in flower till the end where it slows. In my environment, I usually start with an ec of .8 and work up to 1.7

This will be dependent on your light, temp, CO2 levels, and genetics. Basically if your run off EC is lower then what you feed, lower the EC of your solution and if the runoff EC is lower raise the EC of the solution going in...

You will get a feel for it but always measure EC. I actually switched from drain to waste to no runoff at all. I am currently giving my plants 1.6 in flower and the runoff has been 1.5 but is now getting down to 1.4, so I am moving my input solution to 1.7. In my expierience this is a bit high, but this strain is simpling using up the salts fast in my environment.

I am steering the EC to what the plant is taking up. It changes from day to day with the weather so it is like trying to hit a moving target with a large ship. Like I said you need to practice.

I encourage you to stop spending money on equal or lower quality nutes. You are paying a large part of the shipping costs of water. Many of the additivs out there are designed for soil and organic reactions, with jacks and calc nit the nutes are completely soluble out of the box so many of these additives will just polute your tank. Not only will yoube wasting money but you will be seeing problems.

Sad to see this post go nowhere. very interesting idea epicseeds. i've been looking at that jacks professional for some time now...

dizzlekush said:

Sad to see this post go nowhere. very interesting idea epicseeds. i've been looking at that jacks professional for some time now...

Click to expand...

im sad too....I am using Jacks Classic dynamic duo right now. My first time using Jacks, and I am constantly searchin for threads of poeple using Jacks nutes. How do you like Jacks? Mine look good but i'm still unsure of the amounts to use. Right now I am using 1/2 tbs of bloom and 1/4 tbs dyna gro-protek per gallon, and i do a feed-feed-water shcedule...Im not sure if thats too much or too little.


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