Klir Fleece Filter Drop-In 4in Version 2.0 Carpeting In active reef systems

In active reef systems

First Defense is scientifically designed to provide stress relief and support the immune system

SPS and LPS corals should be fed after lights out

Newly Designed Glass Sump Filtration

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Klir Fleece Filter Drop-In 4in Version 2.0 Carpeting In active reef systemsModular Mechanical Filtration at its Finest The Patent Pending Klir Fleece Filter Di 4 fits directly into most 4in filter sock chambers that automatically unrolls new material as it gets clogged, removing suspended particles from your aquarium and producing crystal clear water. Enjoy maintenance free aquarium filtration for months at a time. The Klir filter is a direct replacement for filter socks on sumps with sock trays. Simply remove your sock and