Kratky Method PH adjustment everytime ?

L

lele.lele.lele

New Member
Hello, according to the inventor of Kratky method, one should adjust the ph once at the beginning and then forget it. But the problem is that PH keep rising, and I believe we should constantly use the ph down to adjust it right ?
So IT IS SET AND FORGET OR NOT ?
If I need to adjust the PH then is not.
Kratky never mention ph adjustment,
but in general hydroponics we use ph controller to really set and forget it.

So, what do you do in kratky? you adjust it everytime? and with which substance?
I wanted to use kratky because had apparently no maintence effort, but with this ph problem it has !
Thank you
 
xtsho

xtsho

Well-Known Member
This method works great for lettuce and other leafy plants but a flowering plant like cannabis might not be well suited for it. The pH is rising because the plant is using nutrients in the solution. Also since the nutrient solution remains stagnate some will precipitate and collect on the bottom falling out of the solution and causing the pH to change.

I've grown lettuce with the Kratky method but never cannabis. If I were you I'd adjust the pH and throw an air stone in and switch to DWC.
 
L

lele.lele.lele

New Member
Thank you xtsho ! I actually had an air pump in there, but I read that the oxygen was rising the ph that's why I removed it.
The point is:
I would like to set it and forget it, I would like to not check the ph everytime.
All this problem is for the PH, how you were adjusting it ? ammonium sulfate or sulfuric acid ? how many time per day? every day ?
I would like to set it once and leave it. Maybe the problem is because I only used vinegar and it worked only for few hours, so I am trying to understand the best ph down to make it LAST until i do not have to touch it again.
How did you adjust it and how many time per day/week/month ?

Thank you =)
 
xtsho

xtsho

Well-Known Member
lele.lele.lele said:
Thank you xtsho ! I actually had an air pump in there, but I read that the oxygen was rising the ph that's why I removed it.
The point is:
I would like to set it and forget it, I would like to not check the ph everytime.
All this problem is for the PH, how you were adjusting it ? ammonium sulfate or sulfuric acid ? how many time per day? every day ?
I would like to set it once and leave it. Maybe the problem is because I only used vinegar and it worked only for few hours, so I am trying to understand the best ph down to make it LAST until i do not have to touch it again.
How did you adjust it and how many time per day/week/month ?

Thank you =)
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