Pura (Magnavore) APU00401 Phoslock Aquarium Filter Media for 900-Gallon Tank, 454gm
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<b>[Product Information]</b><br>
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<li>Phoslock is the benchmark ferric hydroxide media for total phosphate removal in all aquaria</li>
<li>Permanently and irreversibly binds phosphate and silicates</li>
<li>Feature removes large quantities of phosphate, arsenic, silicates and other heavy metals and thus greatly reduces propagation of algae</li>
<li>Phoslock can be placed inside of sumps, refugiums, canister, power, pond and corner filters next to uplift tube on UG filter plate</li>
<li>This 454-gram Phoslock comes with 6-inch by 12-inch 300-micron media bag; treats 900-gallon aquarium</li>
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