drastic ph fluctuation

M

mobby420

Well-Known Member
im abotu 25 days into flower and my plants in rockwool are having ph problems, i water with ph 5.5 water with nutrients, and within a few hours the ph in the rockwool cubes is up around 7 again...... i dont know how to correct this or what to do!!! leaves are starting to turn yellow and im having all the problems associated with ph being off!

could this be because my nutrients are not strong enough mixture and the plant is taking them all out of the water causing the p.h to rise?
 
storzbickel

storzbickel

Well-Known Member
mobby420 said:
im abotu 25 days into flower and my plants in rockwool are having ph problems, i water with ph 5.5 water with nutrients, and within a few hours the ph in the rockwool cubes is up around 7 again...... i dont know how to correct this or what to do!!! leaves are starting to turn yellow and im having all the problems associated with ph being off!

could this be because my nutrients are not strong enough mixture and the plant is taking them all out of the water causing the p.h to rise?
Click to expand...
do you ph the soltion after you mix it? or are you just testing the water, and adding nutes?
 
M

mobby420

Well-Known Member
i have a tank that i mix up my water and nutes, then i test the ph of that, then i water........ i decided to test the ph of the water in my rockwool cubes as the plants were having problems..... and realized it goes up very fast
 
potroast

potroast

Uses the Rollitup profile
What do you mean by 'the pH in the cubes?'

Give us more detail. What water do you start with, and what nutes? What are you using to adjust pH?

HTH :mrgreen:
 
GreenLight

GreenLight

Venus
I don't grow hydro but in soil when your runoff water's PH goes up it means there is salt build up in the plant. I don't know if this means anything here. But I figured I would mention it anyways. Good Luck
 
storzbickel

storzbickel

Well-Known Member
potroast said:
What do you mean by 'the pH in the cubes?'

Give us more detail. What water do you start with, and what nutes? What are you using to adjust pH?

HTH :mrgreen:
Click to expand...
i agree, im just unclear on the process you are using..do you squeeze some solution out of the cubes or do you have a probe you just poke in there?
 
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