Kent Marine Phosphate Sponge for Aquariums
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<b>[Product Information]</b><br>
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<li>Phosphate sponge is a ceramic medium which will adsorb phosphates quickly when placed directly in the water flow</li>
<li>Works in fresh and saltwater aquariums or ponds</li>
<li>Bring about 1-ppm of phosphate or silicates down to less than 0.05-ppm in a 120-gallon tank for every dry quart of medium</li>
<li>Also absorb moisture for use as an air dryer for ozone and can be renewed over and over in moisture removal service</li>
<li>For silicate to be removed, phosphates must first be removed; this product weighs 2-quart</li>
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