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 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

  • 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

  • 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 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
    • 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 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

  • 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 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

  • Red Sea REEF-SPEC Carbon
    • This filter extracts specific organic pollutants
    • Low phosphate leakage & minimal ash content
    • pH in your aquarium water will not be affected
    • High absorption capacity & includes a filter bag
    • Cost-efficient & lasts longer than other carbons

    Price From: USD 8.78

    Price From: USD 8.78

  • Supreme Ovation Media Replacements
    • Made with polyester & foam
    • Offers biological filtration
    • Maintains effectiveness of the original filter
    • Replacement media filtration

    Price From: USD 2.99

    Price From: USD 2.99

  • Red Sea Filter Bags
    • Removes uneaten food, debris, waste, or other fine particles
    • Polishes water - ideal for water that is low in particulates
    • Reusable filter bag is great for any salt or freshwater sump
    • Eliminates organic matter that produces ammonia and nitrates

    Price From: USD 7.13

    Price From: USD 7.13

  • Seachem PhosBond
    • Combines phosphate-removing power of aluminum oxide and GFO
    • Rapidly removes phosphates and silicates from aquarium water
    • Equally effective in both freshwater and saltwater systems
    • High porosity and surface provide a large binding capacity
    • Highly durable - will not break down due to mechanical stress

    Price From: USD 7.89

    Price From: USD 7.89

  • Seachem PhosNet
    • Highly effective granular ferric oxide (GFO) filter media
    • High porosity, high surface area, and high binding capacity
    • Rapidly removes phosphates and silicates from aquarium water
    • Equally effective in both freshwater and saltwater systems
    • Will not leach phosphates or silicates back into your aquarium

    Price From: USD 9.82

    Price From: USD 9.82

  • Hydor Black Foam Filter Pads for Professional External Filters
    • Designed for use with Hydor Professional 150 External Filter
    • High-density pads provide highly effective mechanical filtration
    • Coarse composition quickly traps larger debris and particulates
    • Equally effective in freshwater and saltwater aquariums
    • Long-lasting pads leave your aquarium water crystal clear!

    Price From: USD 13.18

    Price From: USD 13.18

  • Hydor White Wool Filter Pads for Professional External Filters
    • Designed for use with Hydor Professional 150 External Filter
    • High-density pads provide highly effective mechanical filtration
    • Fine composition quickly traps small debris and particulates
    • Equally effective in freshwater and saltwater aquariums
    • Long-lasting pads leave your aquarium water crystal clear!

    Price From: USD 6.58

    Price From: USD 6.58

  • Aqua One Reflex Aquarium Kit Replacement Filter Media
    • Tailored to fit the Aqua One Reflex 13
    • Removes any odors or discoloration
    • Prevents ammonia and nitrite build up
    • Replace every 2-4 weeks for best results

    Price From: USD 1.99

    Price From: USD 1.99

  • Boyd Chemi-Pure Elite - Bulk
    • Multi-functional chemical filter media offers countless benefits
    • Removes dissolved organics for crystal clear aquarium water
    • Contains Ferric Oxide to remove phosphates and silicates
    • Stabilizes pH, increases fish life span, and reduces maintenance
    • Great for freshwater, marine, and reef aquariums!

    Price From: USD 43.06

    Price From: USD 43.06

  • Seachem Reef Reactor
    • 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

    Price From: USD 17.80

    Price From: USD 17.80

  • Eheim MECHpros
    • Used with freshwater or saltwater aquarium filters
    • Performs biologically healthy water conditioning
    • Media is residue free, easy to clean and reusable
    • Pre-filter media to capture tiny/coarse dirt particles
    • Ideally combined with SUBSTRATpro or bioMECH

    Price From: USD 9.88

    Price From: USD 9.88

  • 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

  • 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

  • Zoo Med Turtle Clean 50/75 External Canister Filter Media - 2 pk
    • Improves habitats water clarity and odors
    • Absorbs the ammonia & harmful organics
    • Constructed with highest-quality carbon
    • Use with any 50/75 external canister filter
    • Weekly water changes are recommended

    Regular Price: USD 5.49

    Sale Price USD 4.93

    Regular Price: USD 5.49

    Sale Price USD 4.93

  • Zoo Med Turtle Clean 75 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

  • Zoo Med Turtle Clean 75 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

  • Aquatic Life RO Membrane - 100 GPD
    Replacement membrane for the Aquatic Life Deluxe or Power 100GPD RO units and 100 GPD RO Buddie. 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.

    Regular Price: USD 69.99

    Sale Price USD 54.98

    Regular Price: USD 69.99

    Sale Price USD 54.98

  • Aquatic Life RO Membrane for RO Buddie - 50 GPD
    Replacement RO Membrane for the Aquatic Life RO Buddie 50 GPD. Water travels through this semipermeable thin film composite (TFC) membrane, removing any remaining solutes.

    Regular Price: USD 39.99

    Sale Price USD 27.48

    Regular Price: USD 39.99

    Sale Price USD 27.48

  • Eheim bioMECHs
    • Used with freshwater or saltwater aquarium filters
    • Performs biologically healthy water conditioning
    • This filter medium can gently be cleaned and reused
    • Captures dirt particles and holds cleaning bacteria
    • Contains pH-neutral material & no water hardeners

    Price From: USD 16.48

    Price From: USD 16.48

  • Boyd Chemi-Pure Blue
    • The ultimate all-in-one filter media for marine and reef aquariums
    • Combines activated carbon with premium ion exchange resins
    • Reduces organic compounds, phosphates, silicates, and more!
    • Raises redox while helping to stabilize and maintain pH
    • Promotes a cleaner, clearer, and healthier aquarium environment

    Price From: USD 11.50

    Price From: USD 11.50

  • 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

  • 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

  • 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 6.64

    Price From: USD 6.64

  • 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

  • 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

  • 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

  • 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

  • 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 7.68

    Price From: USD 7.68

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