Coco is inert as water, so what you throw in goes out the same way. Soil will act as a buffer and has it’s own pH, that’s why the chart that matches coco is the hydroponics one … 
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Coco is inert as water, so what you throw in goes out the same way. Soil will act as a buffer and has it’s own pH, that’s why the chart that matches coco is the hydroponics one …