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.
  • Two Little Fishies CDX Carbon Dioxide Absorption Media - 750 ml
    • 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 filter
    • Bring your aquarium back to its normal state for a healthy, happy & successful aquarium
    • When you notice CDX changes from white to violet, its time to replace old media for new
    USD 17.79
    USD 17.79
  • Two Little Fishies MetaSorb UHC - 1 to 250 gal
    • Helps in restoring a normal water quality
    • Permanently removes toxic heavy metals
    • For freshwater, marine & reef aquariums
    • Place in a higher water flow volume area
    • May hang-dry to use several times more
    USD 33.94
    USD 33.94
  • Two Little Fishies MetaSorb UHC - 500 to 800 gal
    • Helps in restoring a normal water quality
    • Permanently removes toxic heavy metals
    • For freshwater, marine & reef aquariums
    • Place in a higher water flow volume area
    • May hang-dry to use several times more
    USD 53.42
    USD 53.42
  • Two Little Fishies ReMag - 1 kg
    • Easy magnesium calcium reactor media accurately maintains the level in your aquarium
    • Always be sure to accurately follow the directions for the amount needed for your corals
    • Bring your aquarium back to its normal state for a healthy and successful reef aquarium
    USD 21.41
    USD 21.41
  • Two Little Fishies ReMag - 20 kg
    • Easy magnesium calcium reactor media accurately maintains the level in your aquarium
    • Always be sure to accurately follow the directions for the amount needed for your corals
    • Bring your aquarium back to its normal state for a healthy and successful reef aquarium

    Regular Price: USD 315.49

    Sale Price USD 219.98

    Regular Price: USD 315.49

    Sale Price USD 219.98

  • Two Little Fishies ReMag - 4 kg
    • Easy magnesium calcium reactor media accurately maintains the level in your aquarium
    • Always be sure to accurately follow the directions for the amount needed for your corals
    • Bring your aquarium back to its normal state for a healthy and successful reef aquarium

    Regular Price: USD 67.49

    Sale Price USD 54.98

    Regular Price: USD 67.49

    Sale Price USD 54.98

  • Zoo Med Turtle Clean 75 Fine Mechanical Filter Sponges
    • Works as an extra line of defence
    • Very easy to clean and is reusable
    • Greatly improves the water clarity
    • Eliminates dirt and floating debris
    • Excellent mechanical filter media

    Price From: USD 9.33

    Price From: USD 9.33

  • Zoo Med Turtle Clean 75 Coarse Pre-Filter Sponges
    • Works as the first line of defence
    • Very easy to clean and is reusable
    • Greatly improves the water clarity
    • Eliminates dirt and floating debris
    • Excellent mechanical filter media

    Price From: USD 9.33

    Price From: USD 9.33

  • Zoo Med Turtle Clean 50 Fine Mechanical Filter Sponge
    • Works as an extra line of defence
    • Very easy to clean and is reusable
    • Greatly improves the water clarity
    • Eliminates dirt and floating debris
    • Excellent mechanical filter media

    Regular Price: USD 9.99

    Sale Price USD 9.33

    Regular Price: USD 9.99

    Sale Price USD 9.33

  • Two Little Fishies CDX Carbon Dioxide Absorption Media - 3 L
    • 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 filter
    • Bring your aquarium back to its normal state for a healthy, happy & successful aquarium
    • When you notice CDX changes from white to violet, its time to replace old media for new
    USD 44.38
    USD 44.38
  • Filter Floss - 20 sq ft
    • Dense filter media provides superior mechanical filtration
    • Helps prevent obstructions in the biological media
    • Keeps your aquarium water crystal clear!
    • Can be cut and shaped to fit any filtration system
    • Great for both freshwater and saltwater applications

    Regular Price: USD 11.99

    Sale Price USD 8.78

    Regular Price: USD 11.99

    Sale Price USD 8.78

  • 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

  • Two Little Fishies CDX 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 17.79

    Price From: USD 17.79

  • Two Little Fishies ReMag
    • Easy magnesium calcium reactor media accurately maintains the level in your aquarium
    • Always be sure to accurately follow the directions for the amount needed for your corals
    • Bring your aquarium back to its normal state for a healthy and successful reef aquarium

    Price From: USD 21.41

    Price From: USD 21.41

  • Two Little Fishies MetaSorb UHC
    • Helps in restoring a normal water quality
    • Permanently removes toxic heavy metals
    • For freshwater, marine & reef aquariums
    • Place in a higher water flow volume area
    • May hang-dry to use several times more

    Price From: USD 33.94

    Price From: USD 33.94

  • Filter Floss - 10 sq ft
    • Dense filter media provides superior mechanical filtration
    • Helps prevent obstructions in the biological media
    • Keeps your aquarium water crystal clear!
    • Can be cut and shaped to fit any filtration system
    • Great for both freshwater and saltwater applications

    Regular Price: USD 8.49

    Sale Price USD 6.58

    Regular Price: USD 8.49

    Sale Price USD 6.58

  • Zoo Med Turtle Clean 50 Coarse Pre-Filter Sponge
    • Works as the first line of defence
    • Very easy to clean and is reusable
    • Greatly improves the water clarity
    • Eliminates dirt and floating debris
    • Excellent mechanical filter media

    Regular Price: USD 9.99

    Sale Price USD 9.33

    Regular Price: USD 9.99

    Sale Price USD 9.33

  • 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 15.38

    Price From: USD 15.38

  • 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 3.99

    Price From: USD 3.99

  • 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

  • ATM Supernova Biologically Enriched Living Activated Carbon
    • Premium carbon is biologically enriched with ATM Outbreak!
    • Employs millions of bacteria/enzymes to break down organics
    • "Living" carbon offers enhanced filtration in marine/reef aquariums
    • Natural, non-pelleted form increases surface area and performance
    • No added moisture - enjoy up to 40% more carbon for your money!

    Price From: USD 14.28

    Price From: USD 14.28

  • Marineland Penguin Rite-Size C Filter Cartridges
    • Compatible with Marineland Penguin 170B, 200B, 330B, 350B
    • Compatible with Aqua-Tech 20-40 and 30-60
    • For best results, change every three to four weeks
    • Available in a 3 or 6 pack

    Price From: USD 5.48

    Price From: USD 5.48

  • 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

  • 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 5.48

    Price From: USD 5.48

  • 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 6.58

    Price From: USD 6.58

  • 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 7.86

    Price From: USD 7.86

  • 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 Eclipse Filter Cartridge Rite-Size G
    Filter Media Cartridge-Eclipse/Explorer. Marineland Eclipse Filter Cartridge Rite-Size G

    Price From: USD 6.58

    Price From: USD 6.58

  • 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 6.48

    Price From: USD 6.48

  • 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 27.48

    Price From: USD 27.48

  • 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 18.68

    Price From: USD 18.68

  • 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 10.98

    Price From: USD 10.98

  • 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 4.38

    Price From: USD 4.38

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

    Price From: USD 3.83

    Price From: USD 3.83

  • Fluval Carbon Filter Inserts
    Specially designed to trap large amounts of particulate and liquefied waste. The double fused sheath design traps solid waste before it can clog the fine pores of the powderized carbon layer. Permits higher adsorption for a longer period of time.

    Price From: USD 3.39

    Price From: USD 3.39

  • 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 6.64

    Price From: USD 6.64

  • 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

  • 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 54.98

    Price From: USD 54.98

  • 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 8.99

    Price From: USD 8.99

  • 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 4.93

    Price From: USD 4.93

  • 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

  • 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 3.99

    Price From: USD 3.99

  • 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

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

    Price From: USD 2.18

    Price From: USD 2.18

  • Fluval U Series Foam Pads
    Capture particles and debris for effective mechanical filtration, the crucial first stage in the filtration process. Custom fit to prevent bypass, they have a pore size that allows efficient water flow with less clogging for long-lasting filtration.

    Price From: USD 1.29

    Price From: USD 1.29

  • Fluval Polyester Filter Pads
    Replacement media for Fluval Plus Internal Filters.

    Price From: USD 3.99

    Price From: USD 3.99

  • Fluval Poly/Carbon Cartridges
    Fluval Poly/Carbon Cartridges features two sides for effective chemical filtration, the crucial second stage in the filtration process.

    Price From: USD 2.73

    Price From: USD 2.73

  • Fluval Foam Filter Blocks
    • For filter models 104, 105, 106, 204, 205, 206, 304, 305, 306, 404, 405 and 406
    • For freshwater and marine environments
    • Includes two Fluval Foam Filter Blocks per order

    Price From: USD 2.73

    Price From: USD 2.73

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