Filter Media

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At Big Al’s Pets, we offer the best selection of aquarium filter media, including biological, chemical, and mechanical varieties. These products are essential for ensuring effective aquarium filtration for a healthier fish habitat. Keeping up with aquarium maintenance requires much less time when you use the right filter media since these products are always actively working to create a cleaner, healthier environment for your fish. And when you shop at Big Al’s, you’ll also save time by getting all different types of media you need in one convenient place.

Our selection of aquarium filter media includes over 400 high-quality products. In addition to biological filter media, you’ll also find activated carbon, diatom media, mechanical media, and more. We also carry other accessories you need to properly filter your aquarium, such as filter media bags, replacement cartridges, deionization cartridges, reverse osmosis membranes, etc. With so many options, any fish keeper can find the exact products they need to keep their water clean and their fish happy and healthy.
  • Aquatop IF-Series Internal Filter Sponges
    Replacement Filter Sponges for the Aquatop IF-Series Internal Filters. These dense sponges effectively trap debris, and provide an ideal cultivation site for the growth of beneficial bacteria.

    Price From: USD 4.99

    Price From: USD 4.99

  • Fluval Internal Filter Foam Inserts
    Replacement media for Fluval Internal Filters.

    Price From: USD 1.49

    Price From: USD 1.49

  • Kent Marine Phosphate Sponge
    Kent Marine Phosphate Sponge quickly adsorbs phosphates in fresh and saltwater aquariums. Beads are cracked to expose more surface area and increase efficiency! Will not release soluble aluminum compounds into the aquarium.

    Price From: USD 99.99

    Price From: USD 99.99

    Out of stock

  • Fluval Plus Internal Filter Foam Inserts
    Replacement media for Fluval Plus Internal Filters.

    Price From: USD 3.83

    Price From: USD 3.83

  • Fluval Special Carbon Filter Pads
    The Fluval Plus Special Carbon Filter Pads have been specially developed for the Fluval Plus Underwater Filters, and is ideally suited for removing discoloration, dyes, and harmful substances from your aquarium water.

    Price From: USD 4.68

    Price From: USD 4.68

  • API Ammo-Carb
    Filtration media for the freshwater hobbyist that mixes Ammo-Chips and Activated Filter Carbon to rid aquarium water of dissolved organic materials and ammonia.

    Price From: USD 5.79

    Price From: USD 5.79

  • Two Little Fishies ReBorn Calcium Reactor Media
    • Made to replenish calcium and carbonate alkalinity, strontium as well as trace elements
    • Coarse aragonite reactor media through dissolvable fossil skeletons of reef building corals
    • Bring your aquarium back to its normal state for a healthy, happy & successful aquarium

    Price From: USD 35.66

    Price From: USD 35.66

  • API Nitra-Zorb
    A convenient pouch of natural and synthetic ion-exchange resins that selectively remove ammonia, nitrite, and nitrate from freshwater aquariums. Completely phosphate-free.

    Price From: USD 12.69

    Price From: USD 12.69

  • Seachem SeaGel
    Seagel removes organic and color impurities, phosphates, silicates, toxic metals and acids. Both components are bead shaped for optimum water flow characteristics. Seagel is ideal for reef and marine aquarium use, particularly for algae control.

    Price From: USD 6.98

    Price From: USD 6.98

  • Seachem Matrix Carbon
    Matrix Carbon is a truly unique activated carbon, bead shaped for optimal hydrodynamics. This provides maximum water flow and contact with a high density of adsorptive sites without the compacting common to granular activated carbon.

    Price From: USD 6.80

    Price From: USD 6.80

  • Carib Sea ARM Calcium Reactor Media
    Complete reactor media containing calcium, carbonate, and essential trace elements. A.R.M. has nearly 50x the strontium of other brands. It is processed for immediate use with no rinsing required, and has double the surface area of regular aragonite.

    Price From: USD 24.99

    Price From: USD 24.99

  • Fluval Nitrate Cartridges
    The Fluval G Nitrate adsorbing cartridge is for use with the Fluval G advanced filter and will remove up to 13000 mg of nitrate ion in fresh water aquariums.

    Price From: USD 14.99

    Price From: USD 14.99

  • Fluval Phosphate Cartridges
    The Fluval G Phosphate adsorbing cartridge is for use with the Fluval G3 Advanced Filter and will rapidly remove up to 2200 mg of phosphate ion from marine or fresh water aquaria.

    Price From: USD 7.99

    Price From: USD 7.99

  • Aquatic Life Twist-In Filtration Units
    • Has pivoting, triple-sealed cartridge heads with a twist on/twist off action
    • Features a small footprint, provides mount brackets and requires no tools
    • This unit includes the tubing, water supply connectors & drain connectors
    • Features 3 stages of filtration Sediment, Carbon Block & Reverse Osmosis
    • This improved 3-stage Filter Unit measures 9" x 4" x 13" and weighs 5.5 lb

    Price From: USD 53.99

    Price From: USD 53.99

  • Seachem CupriSorbs
    A narrow spectrum, synthetic adsorbent based filter material for removing copper and heavy metals from either freshwater or marine water. Extracts all types of copper, including chelated copper, and remains effective until it turns a blue-black color.

    Price From: USD 9.68

    Price From: USD 9.68

  • Poly-Bio Marine Filter Pad
    This highly absorbent pad will quickly and efficiently remove impurities and medications from aquarium water. Also removes phosphates which contribute to unwanted microalgae. Changes color when exhausted.

    Price From: USD 7.13

    Price From: USD 7.13

  • Two Little Fishies CDX Carbon Dioxide Absorption Media
    • Successfully removes carbon dioxide from the air that is drawn into the protein skimmer
    • CDX carbon dioxide media installs into the PhosBan reactor & air intake with the adaptor
    • This combination of the CDX media, PhosBan reactor & adaptor functions as an air filterBring your aquarium back to its normal state for a healthy, happy & successful aquarium
    • Bring your aquarium back to its normal state for a healthy, happy & successful aquarium

    Price From: USD 14.79

    Price From: USD 14.79

  • Aquatop Hang-On UV Power Filter Carbon Cartridges
    • Carbon Cartridges for the PF-UV15 Hang-On UV Power Filter
    • Cartridges remove discoloration, odors, and impurities
    • Packed with premium carbon for maximum effectiveness
    • Outer poly layer provides mechanical filtration
    • Super-easy to install!

    Price From: USD 5.99

    Price From: USD 5.99

  • MarinePure Biofilter Media Spheres - 1.5" - 2 qt
    • Inert ceramic bio-filtration substrate with up to 90% Open-Flow porosity
    • Rids water of ammonia and nitrites and reduces nitrate levels
    • Thin Bio-Film Technology stimulates growth of beneficial bacteria
    • Lighter and more effective than live rock at 0.5 g/cc density
    • Improves ecosystem quality and reduces tank maintenance
    USD 28.89
    USD 28.89
  • Penn Plax Cascade Floss Cartridge
    Filter floss for the Penn Plax Cascade Filter 700-1000. 6 pack.

    Price From: USD 8.49

    Price From: USD 8.49

  • API Ammo-Chips
    An economical and rechargeable ammonia remover great in freshwater aquariums and ponds. Promotes a healthy environment in aquariums and goldfish bowls.

    Price From: USD 5.79

    Price From: USD 5.79

  • Seachem Renew
    Renew is an effective and economical replacement for activated carbon. While renew is capable of organic removal and sub-micron filtration, it is less aggressive than carbon. It will not alter ph, remove trace elements, or release phosphates.

    Price From: USD 27.75

    Price From: USD 27.75

  • Eheim Substrat Pro Biological Filter Media
    Substrat pro offers perfect colonization conditions to the important purification bacteria through the high bulk density of the spherical shape and the perfect surface structure. Reduces peak nitrite loads, and can be rinsed and re-used several times.

    Price From: USD 14.99

    Price From: USD 14.99

  • Fluval Bio-Max Rings
    Fluval BioMax bio rings have a complex pore system creating an optimal environment where beneficial bacteria can thrive. They reduce and control ammonia and nitrate. For freshwater and marine environments.

    Price From: USD 8.17

    Price From: USD 8.17

  • Penn Plax Cascade Replacement Cartridges
    Penn Plax Cascade Power Filter Cartridges. Disposable floss/carbon cartridges for Penn Plax Cascade Power Filters. Replace your cartridges every 2-4weeks for best results.

    Price From: USD 0.99

    Price From: USD 0.99

  • Seachem Reef Reactor - Md - 20 L
    • Includes key elements like calcium, magnesium, and more!
    • Encourages a healthy environment for your reef aquaria
    • Helps corals achieve iconic balance, growth, and coloration
    • Aids in the stabilization of alkalinity and pH in aquariums
    • For calcium reactors or substrate in aquariums or refugiums
    USD 120.62
    USD 120.62

    Out of stock

  • Pro Clear Aquatic Systems Chemical Media Cartridge for Freedom Series Sumps
    • Easy to open and load with media
    • Fits Freedom 4-in-1 and Reef sumps
    • No pump required
    • Foam screens included
    • Suitable for wide variety of media
    USD 19.99
    USD 19.99

    Out of stock

  • Aquatic Life Twist-In Carbon Block Filter Cartridge
    • Reduces chlorine and conditions the water
    • This conditions prior to an RO Membrane
    • Advised to replace cartridge every 6 months
    • Don't use with microbiologically unsafe water
    • Flush the carbon dust and the preservative

    Regular Price: USD 9.99

    Sale Price USD 8.61

    Regular Price: USD 9.99

    Sale Price USD 8.61

  • Aquatic Life Twist-In Mixed Bed Color Changing Deionization Filter Cartridge
    • Removes remaining Total Dissolved Solids
    • For use only after RO Membrane filters water
    • Replace when resin color changes completely
    • Uses Cation & Anion resins (H+ and OH-)
    • Flush the carbon dust and the preservative

    Regular Price: USD 29.99

    Sale Price USD 21.69

    Regular Price: USD 29.99

    Sale Price USD 21.69

  • Aquatic Life Twist-In Sediment Filter Cartridge
    • Reduces particulate material like sand & rust
    • Enhances the appearance of aquarium water
    • Advised to replace cartridge every 6 months
    • Don't use with microbiologically unsafe water
    • Flush the carbon dust and the preservative

    Regular Price: USD 7.99

    Sale Price USD 6.65

    Regular Price: USD 7.99

    Sale Price USD 6.65

  • Aquatic Life Twist-In TFC RO Membrane Filter Cartridge - 100 gpd
    • Reduces TDS down to 1/10,000 of a micron
    • Reduces arsenic, lead, parasitic cysts & more
    • Advised to replace cartridge every 1-2 years
    • Don't use with microbiologically unsafe water
    • Flush the carbon dust and the preservative

    Regular Price: USD 49.99

    Sale Price USD 46.93

    Regular Price: USD 49.99

    Sale Price USD 46.93

  • Current USA eFlux Wave Pump Prefilter 1050 - 3 pk
    • Available for models 660, 1050 & 2100
    • Traps small debris & prevents clogging
    • Enhances the overall biological filtration
    • Prolongs optimal aquarium oxygenation
    • Creates a thriving hobbyist experience

    Regular Price: USD 3.99

    Sale Price USD 3.98

    Regular Price: USD 3.99

    Sale Price USD 3.98

  • Current USA eFlux Wave Pump Prefilter 2100 - 3 pk
    • Available for models 660, 1050 & 2100
    • Traps small debris & prevents clogging
    • Enhances the overall biological filtration
    • Prolongs optimal aquarium oxygenation
    • Creates a thriving hobbyist experience

    Regular Price: USD 3.99

    Sale Price USD 2.49

    Regular Price: USD 3.99

    Sale Price USD 2.49

  • Current USA eFlux Wave Pump Prefilter 660 - 3 pk
    • Available for models 660, 1050 & 2100
    • Traps small debris & prevents clogging
    • Enhances the overall biological filtration
    • Prolongs optimal aquarium oxygenation
    • Creates a thriving hobbyist experience

    Regular Price: USD 4.08

    Sale Price USD 2.49

    Regular Price: USD 4.08

    Sale Price USD 2.49

  • Seachem Reef Reactor - Lg - 20 L
    • Includes key elements like calcium, magnesium, and more!
    • Encourages a healthy environment for your reef aquaria
    • Helps corals achieve iconic balance, growth, and coloration
    • Aids in the stabilization of alkalinity and pH in aquariums
    • For calcium reactors or substrate in aquariums or refugiums
    USD 120.62
    USD 120.62

    Out of stock

  • Eheim Ehfifix Mechanical Filter Media
    This special structured coarse filter material is used for mechanical treatment of the water and is used downstream of a layer of EHEIM Mech. EHEIM Fix is used as a parting layer between the mechanical and biological filter medium.

    Price From: USD 22.98

    Price From: USD 22.98

  • Current USA eFlux Wave Pump Prefilters
    • Available for models 660, 1050 & 2100
    • Traps small debris & prevents clogging
    • Enhances the overall biological filtration
    • Prolongs optimal aquarium oxygenation
    • Creates a thriving hobbyist experience

    Price From: USD 2.49

    Price From: USD 2.49

  • Tom Aquatics Dive Clean Mini Replacement Filter Cartridges
    • Cartridge contains high quality activated carbon
    • Removes unwanted odors, chemicals, and discoloration
    • Sponge filter provides biological and mechanical filtration

    Price From: USD 5.48

    Price From: USD 5.48

  • Marineland Penguin Rite-Size A Filter Cartridges
    Marineland Rite-Size Cartridges are designed to meet the highest standards of water purification, performance, and operational ease. Each pre-assembled cartridge slides easily into place, providing superior mechanical and chemical filtration.

    Price From: USD 6.55

    Price From: USD 6.55

  • Aquatic Life Reverse Osmosis Membranes
    Replacement membrane for the Aquatic Life Deluxe 60GPD RO unit, or other standard sized units. Membrane measures 1.75in OD X 11.75in in length, and is composed of polyamide membrane material -thin film composite. Average membrane life span is 2 years.

    Price From: USD 34.96

    Price From: USD 34.96

  • Aquatic Life Reverse Osmosis Cartridges
    Polypropylene sediment filter cartridge. Standard size - 9 7/8" self sealing cartridge will fit tightly in Aquatic Life RO units, as well as most other RO units. Large holding capacity will promote a longer cartridge life.

    Price From: USD 18.99

    Price From: USD 18.99

  • Cobalt Aquatics Duo-Filter UV Sponges
    Replacement filter sponges for the Cobalt Aquatics Duo-Filter UV Internal Filters. These highly porous filter sponges extract free-floating debris and particulates from your aquarium water, and also provide supplemental biological filtration.

    Price From: USD 3.99

    Price From: USD 3.99

  • Marineland Penguin Rite-Size B Filter Cartridges
    Marineland Rite-Size Cartridges are designed to meet the highest standards of water purification, performance, and operational ease. Each pre-assembled cartridge slides easily into place, providing superior mechanical and chemical filtration.

    Price From: USD 5.48

    Price From: USD 5.48

  • Aqueon Phosphate Spec Pads for QuietFlow
    This Aqueon Phosphate Spec Pad is a phosphate replacement cartridge for the QuietFlow Power Filter 10.

    Price From: USD 4.38

    Price From: USD 4.38

  • Aqueon Carbon Spec Pads for QuietFlow
    This Aqueon Carbon Spec Pad is a carbon replacement cartridge for the QuietFlow Power Filter 10.

    Price From: USD 4.58

    Price From: USD 4.58

  • Aqueon Ammonia Spec Pad for QuietFlows
    This Aqueon Ammonia Spec Pad is a chemical replacement cartridge for the QuietFlow Power Filter 10.

    Price From: USD 4.58

    Price From: USD 4.58

  • Marina Poly Wool
    Marina Polywool filter material traps fine particles to keep aquarium water clear and prevent filter clogging. Suitable for fresh or salt water aquariums, this non-toxic media polishes water to make it ultra clear.

    Price From: USD 5.99

    Price From: USD 5.99

  • API Bio-Chem Zorb
    Bio-Chem Zorb removes organic aquarium pollutants, including colors, odors, heavy metals and toxic gases as well as other compounds that carbon alone cannot remove. Safe for use in fresh or saltwater.

    Price From: USD 10.89

    Price From: USD 10.89

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