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fatman41
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- Nov 30, 2011
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@ Cap hey cap can u post ur current bloom mix with jacks?ty in advance
@ Cap hey cap can u post ur current bloom mix with jacks?ty in advance
Cap,
Is Jacks 1g per teaspoon?
Where to get N P K Mg Ca for each of the following from your formula?
mono potassium phosphate @ 0.15 grams/ gal (0-52-34 per gram?)
Potassium sulfate @ 0.16 grams / gal
Jacks hydro @ 3 grams / gal
Jacks MOST @ 0.1 grams / gal (might go to 0.2)
Epsom @ 0.6 grams/ gal
Cal Nitrate @ 2.7 grams per gallon
CaCl2 @ 0.1 grams / gal
I think a gram is less than a teaspoon (mayeb a quarter teaspoon?). You would need to weigh it or re read this thread. I know its somewhere in here.
When I talk about NPK etc ppm/ratios.. I am talking about ELEMENTAL ppm, not percentage listed on the bag (0-52-34). Actual available ppm is different from listed percentages.
If you go back through this thread and study it, all of your questions will be answered. If you still have a question PM me.
volume and weight are relative to the density of the substance being weighed. A tsp of copper and a tsp of epsom obviously have different weights.
Volume is a poor calculator for dry salts, always weigh them when possible.
here are the Purple Kush (real cut) on my modified jacks veg formula. They are quite possibly the healthiest looking plants I have grown in hydro. This pic was taken at day 6 of flip.
I'm just taking a wild guess but you are probably using tap water & 250PPM of Jacks? Or what dry nute are you using?
If you are at all implying jacks & ro at 250PPM you will without a doubt be killing plants left and right.
Here's the VEG recipe I'm working with at the moment with Jacks for moms & those that are rooted.
Feeding: Stardawg, Chem-T, Harlequin, Omrita RX, & LA Con.
Hydro: 1.0EC, .1 EC Mag, .5EC of Cal-Nitrate.
Flower:
Hydro: .7EC, .2EC Mag, .5EC Cal-Nitrate.
From my experience anything that is heavily based around Chem needs a lot of Calcium and mag. I literally can't feed the Chem-T enough, and the StarDawg you could pour calcium all over the leaves and it would still ask for me.
Harlequin, Omrita, & LA con grow themselves with the mix.
Goal for 2012 is to mix the StarDawg & Chem-T w/ the Harlequin & Omrita. High CBD's especially from the Omrita are very relaxing. But they need the refinement of the Chem line IMO.
I believe the key really is to keep P down, and taper off N after stretch.. From what I read that is what leads to a white ash.
That pic at day 6 flower. 1.8 ec. Rockwool croutons. Top drip/ebb flow/nft. Rh is 60. Temp 82. Co2 1000ppm.
A VERY informative post. Interesting setup, very interesting. Where do you use the lava rocks? What made you want to go 1000ppm of co2 vs spurr recommending 800ppm?
A question for you..What techniques do you use to find out how much EC to increase or decrease by?
How often do you water in the environment?
I was using lava rocks (red lava bought at the local building supply, the 3/8" is the best) as a media. Its cheap @ about $5/bag. I soak it in a trachcan full of 10% bleach solution and then rinse and use. I got turned on to croutons recently and I am just trying it out. MY best run to date was with lava on a 24/7 drip. I ran blueberry and all the colas were bigger than my arm. The roots go through all the little holes, it holds pretty much the same O2 as aeroponics IMHO. Also, bugs have a hell of a time reproducing in it when it is on a 24/7 top feed.
Problem with lava is if a pump goes out (or you forget to plug it back in as in my case usually), it is not forgiving. I figure the rockwool will hold its moisture a little longer and may save me from disaster some day.
Right now I am 5 on 20 off. top feed. 24/7 river down the tube via around 600 gph. Then I have a secondary pump that pumps 1 x per hour so that the "tide" rises to a second overflo. its all experimental. I have the pumps on different breakers. Trying to make it run itself for a couple weeks so I can take a break.
The technique I use for EC is experimentation. Run the same strains over and over and take lots of notes. Try to change one variable at a time. I mostly just play around. Sometimes I get burned, sometimes I am rewarded. Either way, I write down what I did and reflect on it during each grow. Dont make the same mistake twice and when you find something that works for you, do it again.
The CO2 was a compromise between spurr and the masses. :mmm
No.
The top drip is on an 1800 GPH pump. It has a bypass valve in the res. WHen it comes on, it stirs the water (5 minutes every 20 minutes)
The second pump (1800 GPH) runs 24 hours, and pumps in water from the bottom, this water is 24/7 running down one end of the pipe, to the other end where there is an overflow that can handle draining 600 gph (there are three rows so 1800/3 is 600 minus some loss in friction from a few pvc elbows).
The third pump is connected to the same line as the second. It is also 1800 GPH. when it kicks on 1 x per hour, it makes each rows water travel at 1200 GPH, which is too much for the first overflow to handle, so the water rises until it hits the second overflow.
So yes it is a combination shallow water culture, NFT, ebb flow, drip, hybrid. The reason for this is because I lost whole rows before by being a dumbass and forgettign to plug pumps in. This way if I forget a pump there are still 2 others taking care of business. Also, I cant imagine a system with more water movement than this one. There is a shitload air moving through those pipes. Im actually going to pipe in fresh air, so that the pipes are not accessing the CO2 enriched room air, just the air from my res room.
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