Fluval G3 Nitrate Cartidge</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Nitrate cartridge for the Fluval G3 Filter that helps to even out nitrate level in freshwater aquariums</li><li>Long-lasting large capacity rechargeable ion exchange resin</li><li>Quickly removes all excess of nitrate in a couple of days</li><li>The cartridge can be removed once nitrate levels have normalized and then stored until required</li><li>If canister is left in the filter it will maintain a low nitrate level for a period of time that is strictly dependent on the type of aquarium</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51vCVYRTRgL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31gxUP6lL%2BL.jpg' noproxy></br>