Oyster shells for pond & basin

Why use oyster shells in a pond or basin? There must have been a time when you noticed oyster shells in some ponds. Apart from the aesthetics they provide, these shells play an active role in the pond's ecosystem. And for good reason, they are excellent factors for stabilizing the carbonate hardness (KH) and the total hardness (GH) of the water. Find the complete guide to oyster shells for ponds by clicking here .
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