How to increase pH with calcium carbonate

Northernpop

Well-Known Member
Hi guys,

Please can anyone advise as to whether feed pH can be increased by using calcium carbonate (say 2.5ml/gal to increase pH by 0.5)?

I grow organically, and I'm not having any real problems, I'd just like to zero my pH between 6.2 to 6.5 every feed.

Many thanks, in advance!

Happy growing.
 
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