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  • MarinePure Biofilter 1.5" Spheres (2 Quart) - Cermedia

    MarinePure Biofilter 1.5" Spheres (2 Quart) - Cermedia

    Cermedia

    $28.89
    1½" Spheres Designed for Ammonia and Nitrite Removal One MarinePure Sphere has the same surface area as 1,350 plastic 1.5" bio-balls. Primarily designed to provide deep anaerobic zones for de-nitrification in passive systems. Live rock...
  • MarinePure Biofilter Plate (8 x 8 x 1) - Cermedia

    MarinePure Biofilter Plate (8 x 8 x 1) - Cermedia

    Cermedia

    $28.04
    8x8x1" Plate Ammonia, Nitrite and Nitrate Removal Primarily designed to provide deep anaerobic zones for de-nitrification in passive systems. Live rock substitute-popular among reef hobbyists as a substitute for live rock because it reduces nitrates...
  • Nano-Tech Bio-Spheres (1Kg / 2.2lbs) - Maxspect

    Nano-Tech Bio-Spheres (1Kg / 2.2lbs) - Maxspect

    Maxspect

    $27.49
    Each Sphere has a surface area of 580ft2 - 20 Spheres is roughly equivalent to 40+ pounds of Live Rock! Ultra-Compact Biological Filtration Media Maxspect’s Nano-Tech BioSpheres are a durable dense arrangement of smaller...
  • Klir 4" Sump Flow-Diverting Cap - Klir

    Klir 4" Sump Flow-Diverting Cap - Klir

    Klir

    $18.99
    Diverter Cap Works With Multiple 4in Sock Sumps - This optional Klir Flow Diverter is used to cap the unused holes of your sump's sock tray. You can easily dial it to divert excess flow or to filter less aggressively.  This will allow you to adjust...
  • 4" x 6" Hybrid Filter Sock - Pro Clear Aquatic Systems

    4" x 6" Hybrid Filter Sock - Pro Clear Aquatic Systems

    Pro Clear Aquatic Systems

    $15.99
    This Hybrid Filter Sock allows water to flow freely while still pulling out up to 200 micron small particles.  Does a great job cleaning but won't get clogged as easily as regular socks. Regular Sock - 4" Diameter x 6" Length
  • Klir 7" Sump Flow-Diverting Cap - Klir

    Klir 7" Sump Flow-Diverting Cap - Klir

    Klir

    $22.99
    This optional 7 inch Klir Flow Diverter to cap the unused holes of your sock tray. You can easily dial it to divert excess flow or to filter less agressively.
  • MarinePure Biofilter Media PODS (3 Count) - Cermedia

    MarinePure Biofilter Media PODS (3 Count) - Cermedia

    Cermedia

    $19.99
    The MarinePure PODs are about 3.1 inches in diameter, created with grooves to produce a randomized water current in and around the part, ensuring greater water and media contact. Just one Pod has the equivalent surface area of over 5,000 plastic...
  • 5" Cylinder Sponge - Pro Clear Aquatic Systems

    5" Cylinder Sponge - Pro Clear Aquatic Systems

    Pro Clear Aquatic Systems

    $9.45
    Cylinder Sponge For PreFilter, Sock Canister (FITS PRO CLEAR PREFILTERS AND 4" SOCK CANISTERS) Comes in the following sizes: 5"
  • Foam Block 12" x 2"x 4"  - Pro Clear Aquatic Systems

    Foam Block 12" x 2"x 4" - Pro Clear Aquatic Systems

    Pro Clear Aquatic Systems

    $16.33
    Foam Block For Premier Wet/Dry Series, RedFlex Sumps Comes in the following sizes: 8" x 2" x 4"  Premier 75, RedFlex 4in1 100 10" x 2" x 4" Premier 125, RedFlex Reef 100, EcoReef 100 12" x 2" x 4" Premier 175/200/300/400, All...
  • Foam Block 14.5" x 2" x 4" - Pro Clear Aquatic Systems

    Foam Block 14.5" x 2" x 4" - Pro Clear Aquatic Systems

    Pro Clear Aquatic Systems

    $18.26
    Foam Block For Premier Wet/Dry Series, RedFlex Sumps Comes in the following sizes: 8" x 2" x 4"  Premier 75, RedFlex 4in1 100 10" x 2" x 4" Premier 125, RedFlex Reef 100, EcoReef 100 12" x 2" x 4" Premier 175/200/300/400, All...
  • Foam Block 18" x 2" x 4" - Pro Clear Aquatic Systems

    Foam Block 18" x 2" x 4" - Pro Clear Aquatic Systems

    Pro Clear Aquatic Systems

    $20.51
    Foam Block For Premier Wet/Dry Series, RedFlex Sumps Comes in the following sizes: 8" x 2" x 4"  Premier 75, RedFlex 4in1 100 10" x 2" x 4" Premier 125, RedFlex Reef 100, EcoReef 100 12" x 2" x 4" Premier 175/200/300/400, All...
  • Foam Block 10" x  2" x 4" - Pro Clear Aquatic Systems

    Foam Block 10" x 2" x 4" - Pro Clear Aquatic Systems

    Pro Clear Aquatic Systems

    $15.63
    Foam Block For Premier Wet/Dry Series, RedFlex Sumps Comes in the following sizes: 8" x 2" x 4"  Premier 75, RedFlex 4in1 100 10" x 2" x 4" Premier 125, RedFlex Reef 100, EcoReef 100 12" x 2" x 4" Premier 175/200/300/400, All...
  • Foam Block 8" x 2"  x4"  - Pro Clear Aquatic Systems

    Foam Block 8" x 2" x4" - Pro Clear Aquatic Systems

    Pro Clear Aquatic Systems

    $13.14
    Foam Block For Premier Wet/Dry Series, RedFlex Sumps Comes in the following sizes: 8" x 2" x 4"  Premier 75, RedFlex 4in1 100 10" x 2" x 4" Premier 125, RedFlex Reef 100, EcoReef 100 12" x 2" x 4" Premier 175/200/300/400, All...