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Corrosion acid abundant in natural black color promotes growth of aquatic plants. Organic elements inside the soil helps aquatic plant grow well, and also have an effect of lowering PH and Hardness of the water. |
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Corrosion acid abundant in natural black color promotes growth of aquatic plants. Organic elements inside the soil helps aquatic plant grow well, and also have an effect of lowering PH and Hardness of the water. |
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