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![]() Marine Pure
Here is some propaganda: Ceramic Bio-Filter Media with Vast Surface Area & Open-Flow Porosity. For ammonia & nitrite removal in fresh & marine aquariums. One MarinePure Sphere has the same surface area as 1,350 plastic bio-balls. Use in wet/dry filters, sumps or canister filters. http://www.cermedia.com/marinepure-products.php Last edited by hillegom; 04-09-2015 at 03:37 PM. Reason: added link |