Biohome Gravel Aquarium Filter Media Media Size: 3mm to 7mm in diameter (each pellet) It is a filtration edia for under gravel filter, internal filters, HOB filters, small canister filters and DIY filters made for aquarium set ups. Premium quality sintered glass filter media. Biohome Gravel is the ideal substrate for your aquarium. Biohome Gravel is added with high grade Manganese Oxide. This compound helps to removes chemical impurities, speeds beneficial bacteria growth (ie nitrifying (aerobic) and denitrifying (anaerobic)), reducing nitrites & nitrates. Like all Biohome products, a good mechanical filtration must be provided to insure the water passing through Biohome does not contain any debris that might clog it. It supports growth of zooplankton and is the perfect playground for shrimp.
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Store in a cool and dry place.