Marineland Ammonia Reducing Resin, 8-oz

For a faster solution to zeolite, try Marineland Ammonia Reducing Resin! This resin works in most freshwater aquarium filters to reduce ammonia and nitrites and to boost chemical filtration. To use, place resin into a nylon mesh media bag (sold separately), test ammonia with an aquarium test strip (sold separately), and calculate the number of tablespoons of resin needed to meet your needs. Remove and replace when color changes—the blue resin changes color to amber when depleted.

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