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Fluval · Substrates & Aquascaping
Bio-Stratum Planted Aquarium Substrate
Bio-Stratum features a 1-3 mm grain size, which is great for smaller aquariums, or as a top layer in larger systems. Infused with beneficial nitrifying bacteria, it's an ideal substrate to start a new planted aquarium with, especially if you plan to keep plants with more delicate root systems; collected from the foothills of Mount Aso volcano in Japan.
Price: $64.99 USD
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