G
Guest
Cabinet is another system I've seen
It has all sorts of rocks in it and no deficiencies. I suspect the rocks are providing iron, as fulvic and humic acids can actually dissolve rock albeit slowly, but don't know which rocks do which (yet).
It has all sorts of rocks in it and no deficiencies. I suspect the rocks are providing iron, as fulvic and humic acids can actually dissolve rock albeit slowly, but don't know which rocks do which (yet).
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