Fritz A+ Aquarium Salt 1lb Rock and biological (Biomax) media -

and biological (Biomax) media - all included

MatrixCarbon has the lowest detectable leachable phosphate content of all major carbon brands tested

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Fritz A+ Aquarium Salt 1lb Rock and biological (Biomax) media -Fritz A+ Aquarium Salt Promotes Fish Health and Reduces Stress Provides Essential Electrolytes Promotes Disease Recovery Facilitates Osmoregulation About Fritz A+ Aquarium Salt Fritz A+ Aquarium Salt is an all natural salt that provides the essential electrolytes freshwater fish need for the uptake of oxygen and release of carbon dioxide and ammonia through the gills. Without electrolytes, fish might face serious health problems. Fritz A+ Aquarium