prestondillan15 said:

Hello I am having a hard time figuring out how to go about buffering a brick of coco using organic dry amendments such as gypsum and epsom salt. I do not want to use cal mag bottles supplement as my whole grow will be organic dry amendments. Can someone point me in the right direction of a good buffer mix that is organic ? The fertilizer i use has 6% Ca in it and 1.2% Mg, i noticed that the cal mag bottled supplements only contain 3.2% Ca and 1.2% Mg. I was looking into using gypsum as a Ca supplement but not sure on how much to add per gallon since the cal mag bottled supplement ratios are so low.

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prestondillan15 said:

I have watched almost all of Mr canucks and he doesn't ever seem to have a problem with cal mag deficiency. I think maybe because his dry nutrients have enough calcium for the plant. But I will try to keep an update, getting ready to transplant within the next 2 weeks. Just have to try to find/make my own buffer mix

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Terpz719 said:

Roots Cal-Mag is derived from gypsum and kieserite. I don't know why that would be a problem since you plan on using gypsum anyway. Kieserite is basically Epsom salt. Please double check, but I think typically when folks buffer coco they mix the solution to 1000 ppm. Seems like you could do that with your gypsum.

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Aqua Man said:

Would be awesome if you could create a diary... I'm thinking down the road after my first coco run I may also try an organic amended coco.

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