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low-voltage transformerCirculation pump with output nozzle2 X Foam filter block with handle (Item #A1375)2 X Activated carbon insert (Item #A1377)2 X BioMax insert (Item #A1378)
Made of high-quality stainless steel
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Polyplab Genesis Rock 4pk Magnesium ConsiderationsGenesis Rock is a 100% Ceramic Compound fired at 600+ degrees that will last in your tank for years. Providing over 23,000 square feet of space per black for beneficial aquarium bacteria to form, these blocks providing a tremendous amount of filtration power and significantly reduce phosphates, nitrates, and other dissolved organic compounds. The Genesis Rock can be used in fresh or saltwater aquariums and can be used under your sand or rock