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nutrient/ppm question

jumanji2

Member
Something just hit me and while 'meditating' lol..when mixing your nutes, do you add or subtract the water ppm..my water is at 240ish ppm after mixing the nutes (GH 3part) let's say during flower my ppm is at 1000-1100..does it mean its really 800-900 ppm? Thanks guys!
 

stoney917

i Am SoFaKiNg WeTod DiD
Veteran
copy n pasted
week 1 500 ppm
week 2 600 ppm
week 3 700 ppm
week 4 800 ppm
week 5 900 ppm <--switch to 12/12 ( I like to start my week count over when I switch to flower)
week 1 1000 ppm
week 2 1100 ppm
week 3 1200 ppm
week 4 1200 ppm
week 5 1200 ppm
week 6 1100 ppm
week 7 1000 ppm
week 8 900 ppm
week 9 flush

i never run my soup at bout 900 staight threw flower
 

FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
That chat only refers to one of NINE different conversion rates. Make sure yours matches or the numbers are all bogus.

Further, the chart has never met: you, your plants, your water, your system. It knows nothing about what you're doing or the tools you're using. Your plants on the other hand, know exactly what's going on and are incapable of lying to you. Don't ask a chart, ask your plants.

EC up, pH down-too rich
EC down, pH up-too lean
EC flat, pH flat-balance.

HOWEVER, flat readings do not mean all nutes are equally absorbed and can lead to imbalance over time. Because no one pH reading allows absorption of all nutes, a small swing is better for you.
 

couchlockd

Active member
ive used freezer boy's rule of thumb
EC up, pH down-too rich
EC down, pH up-too lean
EC flat, pH flat-balance.

i always collect all my runoff, and i use this rule exclusively to know what, when and how strong, i should give nutes. never let me down, and it tells you alot about whats going on i nthe medium.

1.00 EC could be; 700ppm @.7 conversion (truncheon), 640ppm @ .64 conversion (eutech) 500ppm @ .5 conversion (hanna most hanna at least) and i even heard of someone or some company using a 1.00 EC= 940ppm @ .94 conversion.

i use a hanna DIST 4 or a Controll Wizard Nute Wand (trunchoen copy) i calibrate my hanna DIST 4 with 1.413 cal solution, and for shits and giggles i dip the nute wand in the cal solution and it reads always a little lower than the hanna, temperature affects the solutions ec also.

i make sure my cal solution is 77 degrees farenhieght prior to calibration, cuse that is what the label specs for it.
 

FreezerBoy

Was blind but now IC Puckbunny in Training
Veteran
1.00 EC could be; 700ppm @.7 conversion (truncheon), 640ppm @ .64 conversion (eutech) 500ppm @ .5 conversion (hanna most hanna at least) and i even heard of someone or some company using a 1.00 EC= 940ppm @ .94 conversion.

Hanna uses 500, 640, 650 and 700.

940? yoiks! That's at least TEN different conversion scales. Where do they come up with this stuff?
 
That chat only refers to one of NINE different conversion rates. Make sure yours matches or the numbers are all bogus.

Further, the chart has never met: you, your plants, your water, your system. It knows nothing about what you're doing or the tools you're using. Your plants on the other hand, know exactly what's going on and are incapable of lying to you. Don't ask a chart, ask your plants.

EC up, pH down-too rich
EC down, pH up-too lean
EC flat, pH flat-balance.

HOWEVER, flat readings do not mean all nutes are equally absorbed and can lead to imbalance over time. Because no one pH reading allows absorption of all nutes, a small swing is better for you.

Good stuff that a lot of people oughta read and understand. You da man FreezerBoy.
 
If you do not care what scale your meter is converted too then why even use a meter? It is not telling you anything usable w/o knowing how the data is represented.....


Why raise your ppm feed though? Give them what they need the entire grow long. I monitor with ppm meters, i do not mix With them. Instead you can use shroomdrs. Actual avalable ppm charts to come up with a nutrient profile that best suits your strain.
 

stoney917

i Am SoFaKiNg WeTod DiD
Veteran
freezerboy aint gonna steer ya wrong. just posted chart cause it was requested. basically feed what ur plants like everygarden is different.just make sure ur ph is in check which is more important imo a slow drift is perfect cause diff nutes get used at different levels i prefer my ph to slowly rise from 5.5 to 6.4 over 5 days.
 
have you tried a larger swing? the CES cal and mag amps will drop to 4.5ish to pick up some micros before hitting the optimal 5.2... i do let it swing as high as 6.5 though before i drop it back to 5.
 

couchlockd

Active member
yeah swings are good, they let nutrients become available across the board, if you look at those ph charts with the highlighted areas in the 5.5 to 6.5 range you will se there is no "perfect" ph to let all nutes become as available as they should, you need a drift.

FREEZERBOY== there was an article a while back in a weed rag, that talked of this fellow, i think he was the guy who designed the next gen ballast for cap,(kicker car amp looking ones) and he was saying that the true 1.0 ec should be converted at .94 conversion, i havent heard much about this other than that article, i really dont remeber much about the article other than the "EC1.0=940ppm" theory.

yeah alot of hannas are adjustable ppm scale meters like the gro check and a handfull of others.

3.0 ec at .5 is 1500, were that will probably undoubtedly fry some shit up, and 2.14 ec at .7 is 1500ppm, and in most hydro systems that are healthy could runn this ec with a little carfull monitoring.

one conversion scale could wreak you world, and another could grow some very very vigorous plants. and then you think" what scale does the nute company i use, use" and it gets even more frustrating.
 
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