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The liquid formula is easy to dose manually or through an automated dosing system and is formulated to maintain proper ionic balance when used alongside alkalinity and magnesium supplements
Built with durable glass construction
and overall reef stability
supporting healthy coral growth
deeper ocean-blue look
Poly-Filter gold The liquid formula is easyPoly Filter (Poly Bio Marine) is a premium chemical filtration pad that helps remove a wide range of harmful contaminants from freshwater and saltwater aquariums. It absorbs dissolved organics, ammonia, heavy metals, medications, phosphates, and other pollutants while helping improve water clarity and overall water quality. A unique feature of Poly Filter is that it changes color depending on the type of contaminant it is removing, making it easy to
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