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Multi-Stage Pond Filters from OASE


oase biotec 18000 artOASE (Corona, CA) makes the BioTec 18000 multi-stage mechanical/biological filter for large ponds or ponds with many fish.  The mechanical filter captures particles and debris on a 300-micron mesh that cleans itself automatically.  The biological filter uses foam loaded with beneficial bacteria to convert ammonia and nitrites to plant-supporting nitrates.  For details, click here.






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