The Absolute Truth About PH

Antidote Man

Antidote Man

Well-Known Member
So I wanted to clear this up. When I do a google search for proper PH levels for cannabis, most of the responses say between 5.8 - 6.2 is optimum. But I find posts everywhere on multiple forums saying 6.5 - 7.5 is optimum. I find others that say between 6-7. What is the consensus here?

And I'm talking soil, standard top down watering, after nutrients are mixed into the watering pail.
 
PadawanWarrior

PadawanWarrior

Well-Known Member
Antidote Man said:
So I wanted to clear this up. When I do a google search for proper PH levels for cannabis, most of the responses say between 5.8 - 6.2 is optimum. But I find posts everywhere on multiple forums saying 6.5 - 7.5 is optimum. I find others that say between 6-7. What is the consensus here?
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The lower pH levels are for hydro with salts. With soil it should be higher.
 
Antidote Man

Antidote Man

Well-Known Member
" 5.8 – 6.2

Cannabis, like many plants, prefers slightly acidic soil conditions. It tolerates a wide pH range (5.0-7.0) without symptoms of bronzing or interveinal chlorosis (yellowing of top leaves), but pH levels outside of the optimal range of 5.8 – 6.2 will limit growth. "

That's what they say on google...
 
J2M3S

J2M3S

Well-Known Member
Antidote Man said:
" 5.8 – 6.2

Cannabis, like many plants, prefers slightly acidic soil conditions. It tolerates a wide pH range (5.0-7.0) without symptoms of bronzing or interveinal chlorosis (yellowing of top leaves), but pH levels outside of the optimal range of 5.8 – 6.2 will limit growth. "

That's what they say on google...
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Who is they? Don’t believe all you read on the internet.
 
PadawanWarrior

PadawanWarrior

Well-Known Member
Antidote Man

Antidote Man

Well-Known Member
fuckin great. now, how about some more information from people looking to laugh. I've got two sources verified, but yet I've seen so many more saying yet other levels. So far I think Bluelab's the winner. my apology if this has been covered, but I've found so much contradictory info...
 
PJ Diaz

PJ Diaz

Well-Known Member
Antidote Man said:
So I wanted to clear this up. When I do a google search for proper PH levels for cannabis, most of the responses say between 5.8 - 6.2 is optimum. But I find posts everywhere on multiple forums saying 6.5 - 7.5 is optimum. I find others that say between 6-7. What is the consensus here?

And I'm talking soil, standard top down watering, after nutrients are mixed into the watering pail.
Click to expand...
I asked ChatGPT and this is what it told me..

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Drop That Sound

Drop That Sound

Well-Known Member
With soil, the plant isn't the only living thing affected by the PH. The number of different organisms making up the microflora is probably in the billions or something. Some of the microbes even help to manage it, by expending energy I think..
 
D

DoubleD5374

Well-Known Member
Budzbuddha said:
Most bagged medium have ph buffers anyways … so there’s that.

Plus the fact ph can drift - soil or hydro
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Tell me about it , I set my ebb and flow 55 gallon reservoir to low 5s , within 24 hours it raises back up
To mid to high 6s . I have to add a small amount of
Ph down daily . Every 3.5 days h202 - and I change the reservoir out entirely after 7 days . I also run 4 large air stones in my reservoir , completely sealed and no light . I run emerald harvest liquid nutes and the clones seem to love it .

my soil grow I run FF nutrients and RO water , and have to add a small amount of ph up “usually around 5 flat “but I’m sure it would be fine as ph tends to creep in soil as well .
 
PadawanWarrior

PadawanWarrior

Well-Known Member
DoubleD5374 said:
Tell me about it , I set my ebb and flow 55 gallon reservoir to low 5s , within 24 hours it raises back up
To mid to high 6s . I have to add a small amount of
Ph down daily . Every 3.5 days h202 - and I change the reservoir out entirely after 7 days . I also run 4 large air stones in my reservoir , completely sealed and no light . I run emerald harvest liquid nutes and the clones seem to love it .

my soil grow I run FF nutrients and RO water , and have to add a small amount of ph up “usually around 5 flat “but I’m sure it would be fine as ph tends to creep in soil as well .
Click to expand...
Sounds like you have lots of calcium carbonate in your water. That will add alkalinity and make the pH want to rise. Bubbling it will also raise it, but not as fast as alkalinity. What's your water like?
 
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