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    Cascade Cascade Canister Filter Bio-Sponge: 700 / 1000 Bio-Sponge - 1 Pack #CCF229 - Aquarium Filter

    Cascade Cascade Canister Filter Bio-Sponge: 700 / 1000 Bio-Sponge - 1 Pack #CCF229 - Aquarium Filter

    Cascade Cascade Canister Filter Bio-Sponge: 700 / 1000 Bio-Sponge - 1 Pack #CCF229 The Penn Plax Cascade Canister Filter Bio-Sponge keeps your aquarium water clean and clear. The Bio-Sponge also extends the life of carbon and biological media by... more

    $5.49

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    Cascade Internal Filter Replacement Media 300 Carbon Cartridge

    Cascade Internal Filter Replacement Media 300 Carbon Cartridge

    Replacement bio-sponge and 2 pack carbon cartridge for the Cascade Internal Filter 300, 400 and 600. more

    $3.49

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    PetSolutions

    (25,000+)
    Cascade Internal Filter Replacement Media 400 Carbon Cartridge

    Cascade Internal Filter Replacement Media 400 Carbon Cartridge

    Replacement bio-sponge and 2 pack carbon cartridge for the Cascade Internal Filter 300, 400 and 600. more

    $4.49

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    PetSolutions

    (25,000+)
    Marineland Marineland Duetto Biological Filter Pad Sponge: Duetto DJ-100 #48004 - Aquarium Filter Me

    Marineland Marineland Duetto Biological Filter Pad Sponge: Duetto DJ-100 #48004 - Aquarium Filter Me

    Marineland Marineland Duetto Biological Filter Pad Sponge: Duetto DJ-100 #48004 Marineland Duetto Biological Filter Pad Sponge provides biological filtration - the key to a healthy tank! Removes harmful ammonia and nitrites from your aquarium water.... more

    $4.11

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    Cascade Internal Filter Bio-Sponge: Cascade 400 Bio-Sponge - (1 Pack) #CIF2FI - Aquarium Filter Cart

    Cascade Internal Filter Bio-Sponge: Cascade 400 Bio-Sponge - (1 Pack) #CIF2FI - Aquarium Filter Cart

    Cascade Internal Filter Bio-Sponge: Cascade 400 Bio-Sponge - (1 Pack) #CIF2FI The Replacement Cascade Bio-Sponge for the Cascade Internal Filter optimizes colonization of beneficial aerobic bacteria and removes ammonia and nitrites. Quick & Easy to... more

    $3.64

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    Prefilter Sponge for Bio Wheel Pros & 660R Power Heads

    Prefilter Sponge for Bio Wheel Pros & 660R Power Heads

    Replacement Prefilter Sponge for Bio-Wheel Pro Systems and the Penguin 660R Power Head. Provides mechanical filtration by removing waste and debris from your aquarium water before it can enter and create wear or damage to your power head. For more... more

    $5.99

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    Instant Ocean-Aquarium Systems Duetto Prefilter Sponge for Aquarium Filter

    Instant Ocean-Aquarium Systems Duetto Prefilter Sponge for Aquarium Filter

    Instant ocean duetto pre-filter sponge-dj50. Mechanical pre-filter sponge. For use with the duetto 50 internal multi-filter. more

    $5.88

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    Instant Ocean-Aquarium Systems Duetto Prefilter Sponge for Aquarium Filter

    Instant Ocean-Aquarium Systems Duetto Prefilter Sponge for Aquarium Filter

    Instant ocean duetto pre-filter sponge-dj100. Mechanical pre-filter sponge. For use with the duetto 100 internal multi-filter. more

    $7.12

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    Instant Ocean-Aquarium Systems Duetto Biological Sponge for Aquarium Filter

    Instant Ocean-Aquarium Systems Duetto Biological Sponge for Aquarium Filter

    Duetto biological filter pad. Biological filter media for the dj 50. Submersible power filter. The perfect multi-use filter. Silent and powerful filtration. Decorative for instant applications. Low water reptile and amphibian habitats. more

    $6.75

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    DUETTO BIO FILTER SPONGE

    DUETTO BIO FILTER SPONGE

    Biological filter pad is custom designed for duetto submersible power filter. more

    $3.67

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    Rakuten.com Shopping

    (1,000,000+)
    DUETTO BIO FILTER SPONGE

    DUETTO BIO FILTER SPONGE

    Biological filter pad is custom designed for duetto submersible power filter. more

    $3.63

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    Rakuten.com Shopping

    (1,000,000+)
    Bio Filter Sponge for DJ50 Filter

    Bio Filter Sponge for DJ50 Filter

    Replacement Bio Filter Sponge for the Duetto DJ 50 Internal Filter. Sponge provides mechanical filtration by removing waste and debris from the aquarium water and a surface area for the growth of beneficial bacteria; which aids biological filtration.... more

    $3.89

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    Bio Filter Sponge for DJ100 Filter

    Bio Filter Sponge for DJ100 Filter

    Replacement Bio Filter Sponge for the Duetto 100 internal filter. Sponge provides mechanical filtration by removing waste and debris from the aquarium water and a surface area for the growth of beneficial bacteria; which aids biological filtration. For... more

    $4.39

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    DUETTO MECHANICAL PREFILTER SPONGE

    DUETTO MECHANICAL PREFILTER SPONGE

    Multi filter internal chamber design has separate components for mechanical, chemical and biological filtration. Totally submersible for vertical or horizontally. Ingredients:Plastic, Filter, Carbon, Motor more

    $3.63

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    Rakuten.com Shopping

    (1,000,000+)
    Penn Plax Cascade 200 Aquarium Fish Tank Filter

    Penn Plax Cascade 200 Aquarium Fish Tank Filter

    Penn Plax Cascade hang-on power filter features the revolutionary Bio-Falls Quad Filtration System: Polyfiber Floss Cartridge, Activated Carbon Cartridge, Internal Sponge, and External Bio-Falls. It also features a extendible lift tube for maximum... more

    $26.99

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    United Pet Group Aqs Foam Bio Filter Duetto DJ50

    United Pet Group Aqs Foam Bio Filter Duetto DJ50

    Duetto Biological Sponge DJ50 more

    $3.50

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    Kmart

    (2,500+)
    United Pet Group Aqs Foam Bio Filter Duetto DJ100

    United Pet Group Aqs Foam Bio Filter Duetto DJ100

    Duetto Biological Sponge DJ100 more

    $3.50

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    Kmart

    (2,500+)
    United Pet Group Aqs Prefilter Duetto Sponge DJ50

    United Pet Group Aqs Prefilter Duetto Sponge DJ50

    Duetto Prefilter Sponge DJ50 more

    $3.50

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    Kmart

    (2,500+)
    Duetto Biological Sponge For Dj - 100

    Duetto Biological Sponge For Dj - 100

    "Aquarium Systems - IO DUETTO BIOLOG. SPONGE-DJ100. DJ 100 Biological Filter For use with the Duetto 100 Internal Multi-Filter Biological Filtration neutralizes toxic ammonia and nitrites by supporting the growth and proliferation BIO-Spira, the... more

    $2.97

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    Instant Ocean-Aquarium Systems AIO0048003 Dj50 Duetto Prefilter Sponge for Aquarium Filter

    Instant Ocean-Aquarium Systems AIO0048003 Dj50 Duetto Prefilter Sponge for Aquarium Filter

    DJ50 Mechanical Pre-filter Sponge. For use with the Duetto 50 InterNAl Multi-Filter more

    $2.58

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    Duetto Prefilter Sponge For Dj - 100

    Duetto Prefilter Sponge For Dj - 100

    Aquarium Systems - IO DUETTO PREFILT. SPONGE-DJ100. DJ 100 Mechanical Pre-filter Sponge For use with the Duetto 100 Internal Multi-Filter more

    $2.97

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    Aquarium Systems Duetto Multi-Filter Biological Filter for DJ100

    Aquarium Systems Duetto Multi-Filter Biological Filter for DJ100

    DJ 100 Biological Filter. For use with the Duetto 100 InterNAl Multi-FilterBiological Filtration neutralizes toxic ammonia and nitrites by supporting the growth and proliferation BIO-Spira. the beneficial bacteria responsible for nitrification in... more

    $2.58

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    Marineland Duetto Biological Filter for DJ50

    Marineland Duetto Biological Filter for DJ50

    DJ 50 Biological Filter. For use with the Duetto 50 InterNAl Multi-FilterBiological Filtration neutralizes toxic ammonia and nitrites by supporting the growth and proliferation BIO-Spira. the beneficial bacteria responsible for nitrification in aquatic... more

    $2.62

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    Cascade Internal Filter Replacement Media 300 Bio Sponge

    Cascade Internal Filter Replacement Media 300 Bio Sponge

    Replacement bio-sponge and 2 pack carbon cartridge for the Cascade Internal Filter 300, 400 and 600. more

    $2.99

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    PetSolutions

    (25,000+)
    Ista Hydro Bio Sponge Filter - Size L Rectangular (50 Gallons)

    Ista Hydro Bio Sponge Filter - Size L Rectangular (50 Gallons)

    ISTA Bio SpongeSimple, Efficient and EconomicalThe quality bio-sponge assures greater working life and its dense porous foam tissue forms large and ideal surface area for bacteria colonization and filtration. Easy to install, simple to maintain and low... more

    $9.99

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    MarineDepot.com

    (25,000+)
    Bio - sponge 3pk - Biomaxx 10/30 Filter

    Bio - sponge 3pk - Biomaxx 10/30 Filter

    Deep Blue Professional - BioMaxx Medium BioSponge 3Pk. BioMaxx Medium (10/30) BioSponge 3-Pack A healthy aquatic environment depends on biological filtration.BioMaxx BioSponges provide surface area for much-needed beneficial bacteria to grow. The... more

    $3.50

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    Ista Hydro Bio Sponge Filter - Size S Rectangular (20 Gallons)

    Ista Hydro Bio Sponge Filter - Size S Rectangular (20 Gallons)

    ISTA Bio SpongeSimple, Efficient and EconomicalThe quality bio-sponge assures greater working life and its dense porous foam tissue forms large and ideal surface area for bacteria colonization and filtration. Easy to install, simple to maintain and low... more

    $5.89

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    MarineDepot.com

    (25,000+)
    Ista Hydro Bio Sponge Filter - Size L Round (30 Gallons)

    Ista Hydro Bio Sponge Filter - Size L Round (30 Gallons)

    ISTA Bio SpongeSimple, Efficient and EconomicalThe quality bio-sponge assures greater working life and its dense porous foam tissue forms large and ideal surface area for bacteria colonization and filtration. Easy to install, simple to maintain and low... more

    $8.99

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    MarineDepot.com

    (25,000+)
    Ista Hydro Bio Sponge Filter - Size L Round (30 Gallons)

    Ista Hydro Bio Sponge Filter - Size L Round (30 Gallons)

    ISTA Bio SpongeSimple, Efficient and EconomicalThe quality bio-sponge assures greater working life and its dense porous foam tissue forms large and ideal surface area for bacteria colonization and filtration. Easy to install, simple to maintain and low... more

    $8.99

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    PetStore.com

    (2,500+)
    Ista Hydro Bio Sponge Filter - Size Mini Round (5 Gallons)

    Ista Hydro Bio Sponge Filter - Size Mini Round (5 Gallons)

    ISTA Bio SpongeSimple, Efficient and EconomicalThe quality bio-sponge assures greater working life and its dense porous foam tissue forms large and ideal surface area for bacteria colonization and filtration. Easy to install, simple to maintain and low... more

    $4.49

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    PetStore.com

    (2,500+)
    Ista Hydro Bio Sponge Filter - Size S Round (10 Gallons)

    Ista Hydro Bio Sponge Filter - Size S Round (10 Gallons)

    ISTA Bio SpongeSimple, Efficient and EconomicalThe quality bio-sponge assures greater working life and its dense porous foam tissue forms large and ideal surface area for bacteria colonization and filtration. Easy to install, simple to maintain and low... more

    $6.99

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    PetStore.com

    (2,500+)
    Microbe-LiftR Mini Bio-Sponge Pads Pre-Colonized W/ Niteout II. (500 pcs.)

    Microbe-LiftR Mini Bio-Sponge Pads Pre-Colonized W/ Niteout II. (500 pcs.)

    500 Microbe-LiftR mini bio-sponge pads pre-colonized in 2.75 gal. of Niteout II. Provides the highest surface area pr. Unit volume for superior biological nitrification. This product fits most skimmers and filters when packed loosely and may be cleaned... more

    $49.95

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    Penn Plax Reptology 3.25 in. Internal Filter Replacement Bio-sponge

    Penn Plax Reptology 3.25 in. Internal Filter Replacement Bio-sponge

    $17.99

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    Pond Bio Filter 5-264328

    Pond Bio Filter 5-264328

    Easy out-of-pond accessibility and simple maintenance. Mechanical pre-filter sponges-remove suspended debris to improve water clarity. Bio ring media provide massive surface areas for beneficial aerobic bacteria to adhere to and multiply. Tetrapond... more

    $79.30

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