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no idea, ive used calimagic in coco but i dont think theres much difference. the sourcing in the organic may be different but theyre both calcium nitrates
They are different....I believe the G.O. CaMg is actually calcium carbonate, not nitrate (or at least that's what it says on the label). I don't know for sure, but I'm guessing that the amino acids(?) required to make the calcium carbonate bio available, might be in the other G.O. components. I've only used the G.O stuff for one soil grow, so I'm no expert.
Gjohnstone - If you do it, let us know how it works.
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