Best ph range?

EP3 · Jan 28, 2021

Hello folks. Thanks for looking. Just wondering what is the best ph range for different stages of an autoflower life?
Have been 6.0 mostly through whole grow before with like 0.1 either way.

I am at the seedling stage just now.

Regards,
EP3

Flux · Jan 28, 2021

My sweet spot is 6.2 but it’s best practice to let it bounce around a little allowing for different nutrients to become more easily available also deep into budding I raise it to 6.5 as the soil is becoming more acidic.

EP3 · Jan 28, 2021

Flux said:
My sweet spot is 6.2 but it’s best practice to let it bounce around a little allowing for different nutrients to become more easily available also deep into budding I raise it to 6.5 as the soil is becoming more acidic.

I am in coco coir. Should have said that. Thanks
EP3

Trichome farmer · Jan 28, 2021

when i mix up my nutes for coco etc. if its in the range of 5.8-6.2 i give it to them :thumbsup:

like flux says try move it around a little bit if runoof is high add lower ph,d nute till you see it dropping again

EP3 · Jan 28, 2021

Thank you. So it is more of a range than an exact science and aslong as I am in at that range I will be good. Magic.
Thanks again,
EP3

Trichome farmer · Jan 28, 2021

EP3 said:
Thank you. So it is more of a range than an exact science and aslong as I am in at that range I will be good. Magic.
Thanks again,
EP3

just to add so its clear yes its a range but try keep it between 6.0-6.2 that seems to be the sweet spot under led anyways

Arthur · Jan 28, 2021

Vary the pH, lower for veg, higher in flower. If you look at a nute chart, hydro or soil, N is available at a lower pH than P&K.

BirDMan420 · Jan 28, 2021

6.5 with veg, 6.2 flower

MesaBoogie · Jan 29, 2021

Arthur said:
Vary the pH, lower for veg, higher in flower. If you look at a nute chart, hydro or soil, N is available at a lower pH than P&K.View attachment 1281494

That chart is for soil not coco. Coco Falls in with the Hydroponics chart.

Posted Hydro one just so there is no confusion with the appropriate PH ranges with the OP grow.

BirDMan420 said:
6.5 with veg, 6.2 flower

also more of a PH for soil the OP is growing in CoCo..

EP3 · Jan 29, 2021

So I need to go down to 5.7 for manganese and over 6 for good calcium and magnesium uptake.

Best ph range?

EP3

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Flux

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