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    1. eBay
    2. Pet Supplies
    3. Fish & Aquarium
    4. Filter Media & Accs.
    5. Aquarium Bio Balls
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    Aquarium Bio Balls

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    • Fish & Aquarium
    • Filter Media & Accs.
    • Air Pumps
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    • Water Type

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    Shop by Water Type

    Showing slide {CURRENT_SLIDE} of {TOTAL_SLIDES} - Shop by Water Type

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    Best selling

    Showing slide {CURRENT_SLIDE} of {TOTAL_SLIDES} - Best selling

    • 1000 Bio Balls Sump Tank Filter Marine Reef Fish Aquarium Pond Water Media
      1000 Bio Balls Sump Tank Filter Marine Reef Fish Aquarium Pond Water Media
      £37.99 New
    • Evolution Aqua K1 Micro 50 Litre Filter Media
      Evolution Aqua K1 Micro 50 Litre Filter Media
      5 out of 5 stars
      (3)Total ratings 3,
      £88.80 New
    • Fluval A495 Underwater Filter BioMax 6 Oz
      Fluval A495 Underwater Filter BioMax 6 Oz
      5 out of 5 stars
      (28)Total ratings 28,
      £6.63 New
    • Superfish Lava Rock Pond & Aquarium Filter Media 10l BULK Bag
      Superfish Lava Rock Pond & Aquarium Filter Media 10l BULK Bag
      4.5 out of 5 stars
      (4)Total ratings 4,
      £14.49 New
    • Fluval Biomax Bio Rings Media 1100g
      Fluval Biomax Bio Rings Media 1100g
      4.9 out of 5 stars
      (18)Total ratings 18,
      £14.85 New
    • Marine Pure Biofilter Media Gems - 90g
      Marine Pure Biofilter Media Gems - 90g
      5 out of 5 stars
      (2)Total ratings 2,
      £19.99 New
    • 50g Fish Tank Aquarium Bio Balls Sandstone Filter Media Nitrifying Bacteria
      50g Fish Tank Aquarium Bio Balls Sandstone Filter Media Nitrifying Bacteria
      5 out of 5 stars
      (1)Total ratings 1,
      £1.45 New
    • 100 Bio Balls Sump Tank Filter Media Bioballs Marine Reef Aquarium Fish Tank
      100 Bio Balls Sump Tank Filter Media Bioballs Marine Reef Aquarium Fish Tank
      4.8 out of 5 stars
      (4)Total ratings 4,
      £9.99 New
    • All

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    List view

    1-48 of 373 results

    • Bio Balls Aquarium Fish Tank Filter / Sump / Pond Media up to 1000 BioBalls !

      Bio Balls Aquarium Fish Tank Filter / Sump / Pond Media up to 1000 BioBalls !

      £5.63 to £45.59
      Click & Collect
      FAST & FREE
      1,293 sold
    •  WHOLESALE BIO FILTER MEDIA CERAMIC MINI BALLS AQUARIUM FISH TANK NH4, NO2, NO3

      WHOLESALE BIO FILTER MEDIA CERAMIC MINI BALLS AQUARIUM FISH TANK NH4, NO2, NO3

      £2.95 to £12.45
      FAST & FREE
      326 sold
    • Maxspect Nano Tech Bio Spheres Ceramic Filter Media BioSphere Aquarium Fish Tank

      Maxspect Nano Tech Bio Spheres Ceramic Filter Media BioSphere Aquarium Fish Tank

      £23.90 to £41.90
      Click & Collect
      FAST & FREE
      340 sold
    • Superfish Lava-Rock 10L Bag Natural Filter Media Coarse Aquarium Fish Tank

      Superfish Lava-Rock 10L Bag Natural Filter Media Coarse Aquarium Fish Tank

      4.5 out of 5 stars
      (4)4 product ratings - Superfish Lava-Rock 10L Bag Natural Filter Media Coarse Aquarium Fish Tank
      £14.49
      Click & Collect
      FAST & FREE
      257 sold
    • ReefCulture Marine Pure Biofilter Media - Spheres / Plate / Block Aquarium Tank

      ReefCulture Marine Pure Biofilter Media - Spheres / Plate / Block Aquarium Tank

      5 out of 5 stars
      (2)2 product ratings - ReefCulture Marine Pure Biofilter Media - Spheres / Plate / Block Aquarium Tank
      £19.99 to £64.99
      Click & Collect
      FAST & FREE
      81 sold
    • 100 BIO BALLS SUMP TANK FILTER MEDIA BIOBALLS MARINE REEF AQUARIUM FISH TANK

      100 BIO BALLS SUMP TANK FILTER MEDIA BIOBALLS MARINE REEF AQUARIUM FISH TANK

      4.5 out of 5 stars
      (4)4 product ratings - 100 BIO BALLS SUMP TANK FILTER MEDIA BIOBALLS MARINE REEF AQUARIUM FISH TANK
      £11.99
      Click & Collect
      FAST & FREE
      222 sold
    • Fluval Biomax 500g Biological Aquarium Filter Media

      Fluval Biomax 500g Biological Aquarium Filter Media

      5 out of 5 stars
      (18)18 product ratings - Fluval Biomax 500g Biological Aquarium Filter Media
      £10.25
      Click & Collect
      Free postage
    • CerMedia Marine Pure Biofilter Media - Spheres Plate or Block

      CerMedia Marine Pure Biofilter Media - Spheres Plate or Block

      £34.75 to £59.99
      Click & Collect
      FAST & FREE
      19 sold
    • 1kg BIO FILTER MEDIA CERAMIC MINI BALLS AQUARIUM FISH TANK NH4 NO2 NO3 WHOLESALE

      1kg BIO FILTER MEDIA CERAMIC MINI BALLS AQUARIUM FISH TANK NH4 NO2 NO3 WHOLESALE

      £12.45
      Click & Collect
      FAST & FREE
    • Evolution Aqua Kaldness K1 Micro Flter Media Aquarium Pond Moving Bed Filtration

      Evolution Aqua Kaldness K1 Micro Flter Media Aquarium Pond Moving Bed Filtration

      £10.95
      Click & Collect
      FAST & FREE
    • Aquamedic Trickle Filter box for sumps including Bio Balls

      Aquamedic Trickle Filter box for sumps including Bio Balls

      £30.00
      0 bids
      £10.00 postage
      Ending Sunday at 9:11PM BST4d 19hClick & Collect
    • 10/50pcs Aquarium Bio Balls w/Sponge Filter Media Bag Wet/Dry Koi Fish Pond Reef

      10/50pcs Aquarium Bio Balls w/Sponge Filter Media Bag Wet/Dry Koi Fish Pond Reef

      £3.19 to £5.09
      Free postage
      64 sold
    • Fluval Biomax Rings Aquarium Fish Tank Filter Media - Spec U2 U3 U4 106-306 FX5

      Fluval Biomax Rings Aquarium Fish Tank Filter Media - Spec U2 U3 U4 106-306 FX5

      5 out of 5 stars
      (18)18 product ratings - Fluval Biomax Rings Aquarium Fish Tank Filter Media - Spec U2 U3 U4 106-306 FX5
      £9.99 to £14.85
      FAST & FREE
      149 sold
    • JBL Tormec Activ Aquarium Peat Filter Media Lowers PH Fish Tank Acid Buffer

      JBL Tormec Activ Aquarium Peat Filter Media Lowers PH Fish Tank Acid Buffer

      4.5 out of 5 stars
      (8)8 product ratings - JBL Tormec Activ Aquarium Peat Filter Media Lowers PH Fish Tank Acid Buffer
      £10.29
      Click & Collect
      FAST & FREE
      241 sold
    • JUWEL CIRAX M,L,XL ORIGINALS BIOLOGICAL MEDIA CARTRIDGE

      JUWEL CIRAX M,L,XL ORIGINALS BIOLOGICAL MEDIA CARTRIDGE

      £9.75 to £11.95
      Click & Collect
      FAST & FREE
      50 sold
    • EVOLUTION AQUA K1 MICRO FILTER MEDIA FISH TANK AQUARIUM EXTERNAL BIOLOGICAL BIO

      EVOLUTION AQUA K1 MICRO FILTER MEDIA FISH TANK AQUARIUM EXTERNAL BIOLOGICAL BIO

      £10.95 to £88.80
      Click & Collect
      FAST & FREE
      99 sold
    • FILTER MEDIA AQUARIUM BIO BALLS, BIO CERAMIC RINGS FISH TANK POND REMOVE NO2 NH4

      FILTER MEDIA AQUARIUM BIO BALLS, BIO CERAMIC RINGS FISH TANK POND REMOVE NO2 NH4

      £1.95 to £54.95
      FAST & FREE
      85 sold
    • Premium Bio Ceramic MINI Balls AQUARIUM FISH TANK FILTER MEDIA MARINE, SUMP TANK

      Premium Bio Ceramic MINI Balls AQUARIUM FISH TANK FILTER MEDIA MARINE, SUMP TANK

      £2.45 to £44.95
      FAST & FREE
      28 sold
    • Plastic BIO Balls Including Filter Foam Aquarium Media Fish Tank Water BIOBALL

      Plastic BIO Balls Including Filter Foam Aquarium Media Fish Tank Water BIOBALL

      £3.99 to £19.49
      Free postage
    • 200 Bio Balls Aquarium Fish Tank Filter / Sump / Pond Media

      200 Bio Balls Aquarium Fish Tank Filter / Sump / Pond Media

      £9.99
      FAST & FREE
    • 200pcs Bio Balls Aquarium Fish Tank Pond Filter Biological Filtration Media R6N6

      200pcs Bio Balls Aquarium Fish Tank Pond Filter Biological Filtration Media R6N6

      £12.83
      Click & Collect
      Free postage
      or Best Offer
    • 500g CERAMIC BIO BEADS AQUARIUM FILTER MEDIA FISH TANK WATER FILTRATION BALLS

      500g CERAMIC BIO BEADS AQUARIUM FILTER MEDIA FISH TANK WATER FILTRATION BALLS

      5 out of 5 stars
      (1)1 product ratings - 500g CERAMIC BIO BEADS AQUARIUM FILTER MEDIA FISH TANK WATER FILTRATION BALLS
      £7.29
      FAST & FREE
    • Sera Siporax 15mm 1 Litre Best biological Biomedia sump external filter media

      Sera Siporax 15mm 1 Litre Best biological Biomedia sump external filter media

      £10.99
      Click & Collect
      FAST & FREE
      737 sold
    • Bio Balls Aquarium Fish Tank Filter / Sump / Pond Media up to 1000 BioBalls !

      Bio Balls Aquarium Fish Tank Filter / Sump / Pond Media up to 1000 BioBalls !

      £5.63 to £45.59
      Click & Collect
      FAST & FREE
      126 sold
    • Mantis Bio Spheres 2kg Inert Filter Media

      Mantis Bio Spheres 2kg Inert Filter Media

      £38.50
      Click & Collect
      FAST & FREE
    • Maxspect Nano-Tech Bio-Sphere 1kgs

      Maxspect Nano-Tech Bio-Sphere 1kgs

      £23.89
      Click & Collect
      Free postage
      or Best Offer
    • MAXSPECT NANO-TECH BIO-SPHERE 1KG

      MAXSPECT NANO-TECH BIO-SPHERE 1KG

      £20.99
      Click & Collect
      FAST & FREE
    • Superfish - BIO BALLS 3000ml 

      Superfish - BIO BALLS 3000ml 

      £18.99
      Click & Collect
      Free postage
      or Best Offer
    • 2pcs Bio Balls Professional Efficient Useful Filtration for Aquarium

      2pcs Bio Balls Professional Efficient Useful Filtration for Aquarium

      £15.79
      Free postage
    • Maxspect Nano Tech Bio Spheres Ceramic Filter Media BioSphere Aquarium Fish Tank

      Maxspect Nano Tech Bio Spheres Ceramic Filter Media BioSphere Aquarium Fish Tank

      £23.99 to £41.99
      Click & Collect
      FAST & FREE
    • 50Pcs Bio Balls Aquarium Biological Filter Media Marine Fish Tank  Canister Pond

      50Pcs Bio Balls Aquarium Biological Filter Media Marine Fish Tank Canister Pond

      £6.58 to £7.99
      Free postage
    • 30 x Bio Balls / Wet Reef Media / Aquarium Koi Fish Pond Dry 40mm

      30 x Bio Balls / Wet Reef Media / Aquarium Koi Fish Pond Dry 40mm

      £6.99
      Click & Collect
      £3.20 postage
      or Best Offer
    • Seachem Matrix  (Free Shipping)

      Seachem Matrix (Free Shipping)

      5 out of 5 stars
      (12)12 product ratings - Seachem Matrix (Free Shipping)
      £7.77 to £26.01
      £49.49 postage
      72 sold
    • Fluval Pre Filter Pre-Filter 750g Mechanical Filtration

      Fluval Pre Filter Pre-Filter 750g Mechanical Filtration

      5 out of 5 stars
      (5)5 product ratings - Fluval Pre Filter Pre-Filter 750g Mechanical Filtration
      £11.49
      Click & Collect
      Free postage
    • 100pcs Fish Tank Filter Bio Balls Aquarium Filter with Cotton Filter Materi

      100pcs Fish Tank Filter Bio Balls Aquarium Filter with Cotton Filter Materi

      £14.19
      Free postage
    • AQUARIUM FILTER MEDIA BIO BALLS BEADS FISH TANKS FILTRATION INTERNAL EXTERNAL

      AQUARIUM FILTER MEDIA BIO BALLS BEADS FISH TANKS FILTRATION INTERNAL EXTERNAL

      £6.49 to £12.49
      FAST & FREE
      59 sold
    • 300pcs Aquarium 16mm Bio Balls FREE Bag Filter Media Wet/Dry Koi Fish Pond Reef

      300pcs Aquarium 16mm Bio Balls FREE Bag Filter Media Wet/Dry Koi Fish Pond Reef

      £14.59
      Free postage
    • JBL MicroMec Biofilter Pellets filter media biological biomedia balls aquarium

      JBL MicroMec Biofilter Pellets filter media biological biomedia balls aquarium

      £14.89
      Click & Collect
      FAST & FREE
      Only 2 left
    • Kintama Bio Balls Filter Media - 3 sizes available

      Kintama Bio Balls Filter Media - 3 sizes available

      £40.99 to £93.50
      Click & Collect
      Free postage
      2 watching
    • Tetratec Biobälle BB 400/600/700/800 /1200/2400 For Ex External Filter Tetra

      Tetratec Biobälle BB 400/600/700/800 /1200/2400 For Ex External Filter Tetra

      5 out of 5 stars
      (1)1 product ratings - Tetratec Biobälle BB 400/600/700/800 /1200/2400 For Ex External Filter Tetra
      £21.13
      £8.29 postage
    • Superfish - BIO BALLS 3000ml 

      Superfish - BIO BALLS 3000ml 

      £18.95
      Click & Collect
      FAST & FREE
    • Ceramic Ring Accessories Biological Ball Aquarium Cultivation Pond Filter Media

      Ceramic Ring Accessories Biological Ball Aquarium Cultivation Pond Filter Media

      £17.27
      Free postage
    • All Pond Solutions Bio Balls Fish Tank Filter Media, 40-Piece

      All Pond Solutions Bio Balls Fish Tank Filter Media, 40-Piece

      5 out of 5 stars
      (2)2 product ratings - All Pond Solutions Bio Balls Fish Tank Filter Media, 40-Piece
      £10.94
      Free postage
      4 watching

    Results pagination - page 1

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    Highest-rated products

    See all - Highest-rated products

    Showing slide {CURRENT_SLIDE} of {TOTAL_SLIDES} - Highest-rated products

    • Fluval A495 Underwater Filter BioMax 6 Oz
      Fluval A495 Underwater Filter BioMax 6 Oz
      4.8 out of 5 stars
      (30)Total ratings 30,
      100% agree - Would recommend
      £6.63 New
    • Fluval Biomax Bio Rings Media 1100g
      Fluval Biomax Bio Rings Media 1100g
      4.9 out of 5 stars
      (18)Total ratings 18,
      87% agree - Would recommend
      £14.85 New
    • Fluval Biomax Bio Rings 500g Filter Media
      Fluval Biomax Bio Rings 500g Filter Media
      4.9 out of 5 stars
      (18)Total ratings 18,
      100% agree - Would recommend
      £9.99 New
    • JBL TorMec Active Black Peat Granulate 1000ml
      JBL TorMec Active Black Peat Granulate 1000ml
      4.5 out of 5 stars
      (8)Total ratings 8,
      85% agree - Would recommend
      £10.29 New

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    • Flymo Turbo Lite 270 Hover Lawn Mower - Certified Refurbished- Silver Grade
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