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.
  • 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 13.99

    Price From: USD 13.99

  • 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 5.99

    Price From: USD 5.99

    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 19.99

    Price From: USD 19.99

  • 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 3.49

    Price From: USD 3.49

  • 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 5.49

    Price From: USD 5.49

  • 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 6.49

    Price From: USD 6.49

    Out of stock

  • SR Aquaristik Activated Filter Carbon
    • Professional-grade activated carbon
    • Ideal for freshwater and marine aquariums
    • Effectively removes discoloration, odors, and organic pollutants
    • Pelleted shape maximizes surface area for optimal adsorption
    • Delivers crystal clear water!

    Price From: USD 13.18

    Price From: USD 13.18

  • Seachem PhosGuard
    PhosGuard rapidly removes phosphate and silicate from marine and freshwater aquaria. It is not recommended for phosphate buffered freshwater. PhosGuard is highly porous for high capacity and bead-shaped for optimum water flow.

    Price From: USD 5.07

    Price From: USD 5.07

  • Seachem Matrix Bio-Media
    Matrix is a high porosity biomedia that provides efficient biofiltration for the removal of nitrogenous waste. Matrix is a porous inorganic solid about 10 mm in diameter. Matrix is compatible with all types of wet or wet-dry filters.

    Price From: USD 6.22

    Price From: USD 6.22

  • Seachem De*Nitrate
    Economical, natural, porous material with a pore distribution and geometry that promotes both aerobic nitrification within the first few millimeters of depth and anaerobic denitrification at the core. Supports a high density of bacteria.

    Price From: USD 6.22

    Price From: USD 6.22

  • API Activated Filter Carbon
    A special blend of highly activated carbon - an economical filter carbon for the tropical fish hobbyist. Removes colors, odors & poisonous waste from fresh and saltwater aquariums. Can be used in all filter cartridges.

    Price From: USD 3.89

    Price From: USD 3.89

  • Seachem Purigen
    Purigen is a premium synthetic adsorbent that is unlike any other filtration product. It polishes water to unparalleled clarity. Like hypersorb, purigen darkens progressively as it exhausts, and is easily renewed by treating with household bleach.

    Price From: USD 9.13

    Price From: USD 9.13

  • Seapora Cut-To-Size Filter Pads
    Seapora Filter Pads can be cut & shaped to fit any filtration system, such as: Canister Filters, Hang-On Filters, Trickle Filters, Pond Filters, and other mechanical filter applications.

    Price From: USD 3.49

    Price From: USD 3.49

  • Seapora Filter Floss Pads
    • Dense filter pads provide 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

    Price From: USD 0.99

    Price From: USD 0.99

  • Fluval Bio-Foam for Fluval 06 Series Filters
    • Designed exclusively for Fluval canister filters
    • Provides exceptional biological and mechanical filtration
    • Optimal surface area for growth of beneficial nitrifying bacteria
    • Traps particulate matter to keep water clear
    • Ideal for freshwater and saltwater aquariums

    Price From: USD 2.99

    Price From: USD 2.99

  • Two Little Fishies NPX Bioplastics Media
    • Promotes growth of bacteria that assimilate nitrate and phosphate
    • Protein skimmers harvest bacteria, reducing nitrate & phosphate levels
    • Bacteria also a food source for filter-feeding invertabrates
    • Designed for use in fluidized media reactors or filter media bags

    Price From: USD 12.77

    Price From: USD 12.77

  • API Nexx Bio-Chem Zorb
    • Produces crystal clear water
    • Removes organic pollutants, colors, odors, heavy metals, etc.
    • Filters out light blocking impurities
    • Helps corals and plants grow
    • For freshwater and saltwater use

    Price From: USD 25.21

    Price From: USD 25.21

  • Two Little Fishies Phosban
    Synthetic ferric oxide hydroxide granules with an extremely high capacity for adsorbing phosphate from saltwater and freshwater. Also adsorbs silicate, and does not release adsorbed substances.

    Price From: USD 22.65

    Price From: USD 22.65

  • Tetra Whisper Bio Bags - Economy
    Whisper Bio-Bag Filter Cartridges make clear water simple. Ultra-activated carbon absorbs odors and discoloration better than competing brands, while dense, dual-sided mesh catches debris and fish waste. These economy cartridges are easy to assemble.

    Price From: USD 7.99

    Price From: USD 7.99

    Out of stock

  • Seapora Filter Media Bag
    Perfectly suited for use with Carbon, Zeolite, Peat, Phosphate removing resins or any other loose media your aquarium may require. They are ideal for use in almost any kind of filter, and feature a durable drawstring design making them fully reusable.

    Price From: USD 0.99

    Price From: USD 0.99

  • 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 1.49

    Price From: USD 1.49

  • 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 2.99

    Price From: USD 2.99

  • Fluval Foam Filter Blocks
    Captures large particles and debris for effective mechanical filtration. Custom fit to prevent bypass, they have a pore size that allows efficient water flow with less clogging for long-lasting filtration. For freshwater and marine environments.

    Price From: USD 2.49

    Price From: USD 2.49

  • Fluval Carbon Filter Inserts
    Premium research-grade low-ash Fluval Carbon is highly porous, providing large amounts of surface area for adsorbtion of impurities. It effectively removes heavy metals, odors, discolorations, organic contaminants and pollutants from your aquarium water.

    Price From: USD 4.99

    Price From: USD 4.99

  • Engineered Foam Products Foam Filter Sponges
    Black Foam Filter Pad can be used for sumps, trickle filters, drip trays, etc. Can be trimmed to fit most common uses.

    Price From: USD 1.99

    Price From: USD 1.99

  • Coralife Pure-Flo Fine Filter Pads
    • Designed for the removal of debris and particulate matter
    • Highly efficient filter pad makes aquarium water sparkle!
    • Allows passage of beneficial microbes to maintain ecosystem
    • Ideal for both freshwater and saltwater applications
    • Rugged, machine washable, and 100% reusable

    Price From: USD 9.49

    Price From: USD 9.49

  • Coralife Pure-Flo II Reverse Osmosis Cartridges
    Replacement micron cartridge for the Coralife Pure-Flo II Reverse Osmosis systems. Removes particles as small as 1 micron in diameter. May also be used in the original Pure-Flo units and in many other R/O systems.

    Price From: USD 3.99

    Price From: USD 3.99

  • Eheim Ehfimech Mechanical Filter Media
    Coarse, mechanically working material is used where water first enters the filter process. Water is swirled and coarse particles of dirt sink. Then the water continues its way through the other filtering layers.

    Price From: USD 8.99

    Price From: USD 8.99

  • Fluval Water Polishing Pads
    Fluval Water Polishing Pads are uniquely designed to fit Fluval Canister Filters. These extra thick micro-fine polyester pads effectively trap micro particles and debris as water passes through. For freshwater and marine environments.

    Price From: USD 2.99

    Price From: USD 2.99

  • Hagen AquaClear Activated Carbon Inserts
    AquaClear Activated Carbon Filter Inserts improve water clarity for fresh and saltwater aquariums. Exclusively designed for the AquaClear Power Filters, they provide superior adsorption qualities which eliminate odors, discoloration and impurities.

    Price From: USD 1.49

    Price From: USD 1.49

  • Marineland Black Diamond Carbon
    Marineland Black Diamond Premium Activated Carbon eliminates discoloration, odors, and impurities. For sparkling clean water. Ideal for all aquarium filters. Heat-activated bituminous coal-based Black Diamond granules are specially sized.

    Price From: USD 3.99

    Price From: USD 3.99

    Out of stock

  • Kent Marine Reverse Osmosis Membranes
    Heavy mineral deposits will clog your membrane and reduce the quality of your RO water over time. Monitor your RO water regularly; replacement times vary due to how frequently the unit is used, and the quality of the source water.

    Price From: USD 79.99

    Price From: USD 79.99

  • Kent Marine Reverse Osmosis Cartridges
    Hi-S Silicamax absorption cartridge for use in the Kent Hi-S and Maxxima RO units. Monitor your RO water regularly to decide the best time to replace your Silicamax cartridge

    Price From: USD 6.49

    Price From: USD 6.49

  • Kent Marine Reef Carbon
    Kent Marine Reef Carbon contains essential Activated Carbon for use in marine and freshwater aquariums. Contains a fine coal-based carbon to remove organic pollutants, stain, and entrained toxic gases.

    Price From: USD 8.49

    Price From: USD 8.49

  • Hagen AquaClear Zeo-Carb Filter Inserts
    AquaClear Zeo-Carb Filter Inserts combine Activated Carbon and Ammonia Remover to remove odors, discoloration and impurities in freshwater aquariums. Prevents the build up of toxic ammonia and nitrite reducing stress on fish.

    Price From: USD 3.49

    Price From: USD 3.49

  • Hagen AquaClear Foam Filter Inserts
    AquaClear Foam Filter Inserts provide mechanical filtration by trapping particles and debris, as well as powerful biological filtration. Exclusively designed for the AquaClear Power Filters, these inserts are safe for fresh and saltwater aquariums.

    Price From: USD 1.49

    Price From: USD 1.49

  • Hagen AquaClear Bio Max Filter Inserts
    AquaClear BioMax Filter Inserts provide an optimal environment for beneficial bacteria growth. Reducing ammonia and nitrite levels, they increase biological filtration efficiency by 30%. Exclusively designed for the AquaClear Power Filters.

    Price From: USD 2.49

    Price From: USD 2.49

  • Hagen AquaClear Ammonia Remover Filter Inserts
    AquaClear Ammonia Remover Filter Insert is ideal for new or heavily populated freshwater aquariums. It removes and controls harmful ammonia and nitrite. It reduces stress on fish. Exclusively designed for use in the AquaClear Power Filters.

    Price From: USD 1.99

    Price From: USD 1.99

  • Eheim Ehfilav Biological Filter Media
    EHEIM LAV consists of natural extrusive rocks of volcanic origin. Its rough surface structure offers good colonization conditions to the useful purification bacteria.

    Price From: USD 7.99

    Price From: USD 7.99

  • Aqueon QuietFlow Internal Filter Replacement Cartridges
    • For QuietFlow AT10 & AT15 internal filters
    • Provides powerful 3-stage filtration for crystal clear water
    • Dense mechanical foam effectively traps debris
    • Activated carbon removes toxins, odors, and discoloration
    • Bio-Grid facilitates cultivation of beneficial bacteria

    Price From: USD 4.99

    Price From: USD 4.99

  • 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 6.99

    Regular Price: USD 11.99

    Sale Price USD 6.99

  • 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
  • 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 14.79
    USD 14.79
  • 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

    Out of stock

  • 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 199.99

    Sale Price USD 119.99

    Regular Price: USD 199.99

    Sale Price USD 119.99

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