Oyster Shells

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Premium Japanese Oyster Shell
Premium Japanese Oyster Shell Halves in Net Bag Japanese Oyster shell halves are used to buffer and maintain a constant pH in your Koi pond. Ideally used within a submerged media filter or shower filter shuch as the "Roto Shower Tube". They can also be used directly within the pond, close to a return flow. Net Weight 7kg Available at an Unbeatable Best Price
£29.99 inc VAT