Ok, so I am growing a couple autos in coco coir. I'm using PureBlend Grow Pro as veg nutes.. and I think my coir is becoming too acidic from these nutes!
I told my local hydro dude that i am growing in coco with PureBlend nutes, and he recommended using CalMag. So i bought it (actually, its CaliMagic or whatever, but essentially the same thing..).
My question is, does CalMag buffer your substrate's pH, as well as (obviously) deliver Ca and Mag? Will it significantly buffer my coir's pH, or do i need to invest in some pH-up?
Is pH-up or powdered lime better to use?
Also, is there any recommended ratio of PureBlend-to-CalMag?
Thanks!
I told my local hydro dude that i am growing in coco with PureBlend nutes, and he recommended using CalMag. So i bought it (actually, its CaliMagic or whatever, but essentially the same thing..).
My question is, does CalMag buffer your substrate's pH, as well as (obviously) deliver Ca and Mag? Will it significantly buffer my coir's pH, or do i need to invest in some pH-up?
Is pH-up or powdered lime better to use?
Also, is there any recommended ratio of PureBlend-to-CalMag?
Thanks!