Filters

Items 1 to 48 of 166 total

Despite having over 100 filters for sale, Big Al’s Pets make it easy to find the perfect match for your aquarium. Our aquarium filters are easily sorted into categories so you can provide your fish with the best filtration system for their needs. You’ll find everything from power filters to canister filters to modular filters on our site. Plus, we carry under-gravel filters, sponge filters, sump filters, and fluidized bed filters to accommodate any application or setup. Each one provides high-quality filtration to ensure the best water quality and clarity for your fish.

When choosing an aquarium filter, make sure you take into account the many factors which can affect filter performance. The size of your tank is a major determining factor in the type of filter that you require. For example, some larger tanks employ multiple filters to achieve the best water conditions. You’ll also need to consider other factors, such as how many and what types of fish you have in your aquarium. Take a closer look at our amazing selection of aquarium filters, and you’re sure to find one that meets your specific needs.
  • Eheim Classic Canister Filter with Media - 2217
    • Recommended for tanks up to 160 gallon
    • The flow rate is 264 GPH
    • Inlet 16/22mm and Outlet 12/16mm
    • Simple and efficient canister filter design
    • Includes all media, hoses and accessories required for start up
    CAD 299.99
    CAD 299.99
  • Seachem Tidal Power Filter 110
    • Upper most blue pegged integrated maintenance alert feature
    • Integrated self priming pump; thus no priming is required
    • Features a high capacity 3.2 L filter basket for optimal filtration
    • This super silent model is ideal for up to 110 gallon aquariums
    • Includes adjustable upper flow rate and lower intake knobs
    CAD 99.99
    CAD 99.99
  • Fluval FX4 High Performance Canister Filter
    • Powerful canister filter has a 450 gph flow rate on 30 watts
    • Smart Pump Technology (SPT) ensures optimal performance
    • Includes all the media required for highly effective filtration
    • This mega capacity filter holds 3.9 L (1 gal) of filter media
    • Suitable for freshwater or marine aquariums up to 250 gal
    CAD 389.99
    CAD 389.99
  • Fluval FX6 High Performance Canister Filter
    • Ultra powerful canister filter boasts a 563 gph flow rate!
    • Smart Pump Technology (SPT) ensures optimal performance
    • Includes all media required for highly effective filtration
    • Mega capacity filter holds 5.9 L of filter media
    • Integrated dials remind you when maintenance is required
    CAD 439.99
    CAD 439.99
  • Skim350 Micro Surface Skimmer
    • Designed for use in aquariums up to 92 gallons
    • Removes dust, oily films, and microorganisms from water's surface
    • Promotes proper gas exchange for a healthier aquarium
    • Driven by 80 gph pump with adjustable flow control
    • Self-adjusting float compensates for water evaporation
    CAD 49.99
    CAD 49.99
  • Marineland Magnum Polishing Internal Canister Filter
    • Foam Filter Sleeve, water polishing & 3-stage filtration
    • This includes the built-in Magnum Micron Cartridge
    • Includes one Marineland Rite-Size JH Floss Sleeve
    • Black Diamond Premium Activated Carbon included
    • This filter provides the option of modifying your media
    CAD 79.99
    CAD 79.99
  • Eheim Surface Skimmer
    Use on the intake side of your canister filter. Quietly removes surface sludge and protein build-up. This product can hook up to any canister filter with a flow rate up to 200 gph.
    CAD 67.99
    CAD 67.99
  • Fluval Surface Skimmer
    The Fluval aquarium surface skimmer draws water from the surface of the aquarium eliminating undesirable surface films.
    CAD 19.99
    CAD 19.99
  • Seachem Tidal Power Filter 55
    • Upper most blue pegged integrated maintenance alert feature
    • Integrated self priming pump; thus no priming is required
    • Features a high capacity 1.2 L filter basket for optimal filtration
    • This super silent model is ideal for up to 55 gallon aquariums
    • Includes adjustable upper flow rate and lower intake knobs
    CAD 69.99
    CAD 69.99
  • E-X-T Aquarium Canister Filter
    • Powerful 4-stage canister filter for aquariums up to 55 gallons
    • Driven by a 210 gph in-line pump instead of a bulky motorhead
    • Includes four large media trays pre-loaded with premium media
    • Perform canister maintenance without stopping water circulation!
    • Ideal for freshwater, saltwater, reef, and terrarium applications
    CAD 169.99
    CAD 169.99
  • Tetra Whisper In-tank Filter - 3i
    The Whisper In-tank 3i filter mounts on the inside of the aquarium, making it possible to place your tank flush against a wall. It uses air bubbles to move water up the airlift tube and through the filter cartridge making it ideal for keeping small fish.
    CAD 21.99
    CAD 21.99
  • Penn Plax Cascade 170 Internal Filter
    These slim, easy to maintain internal filters provide great Physical, Chemical and Biological filtration for any Marine or Tropical aquarium. Comes with a directional flow spout, completely submersible motor with aeration control and an air filter.
    CAD 14.99
    CAD 14.99
  • Pro Clear Aquatic Systems Freedom Reef Sump 100 - 24"
    • Quiet, sturdy, easy to maintain saltwater filtration system
    • The Eurobrace around the rim of the sump prevents bowing
    • Notches for holding wires, dosing tubes & return pump tubing
    • Adjustable flow-gate through the media container section
    • Bubble diffuser tubes help silence bubbles as water enters
    CAD 329.99
    CAD 329.99
  • Seachem Tidal Power Filter 75
    • Upper most blue pegged integrated maintenance alert feature
    • Integrated self priming pump; thus no priming is required
    • Features a high capacity 1.9 L filter basket for optimal filtration
    • This super silent model is ideal for up to 75 gallon aquariums
    • Includes adjustable upper flow rate and lower intake knobs
    CAD 84.99
    CAD 84.99
  • Pro 4e+ Canister Filter - 350
    • Maintains powerful performance and high-tech capabilities
    • Includes Constant Flow and Electronic Output Control features
    • Electronic Air Indicator, 12-Hour Bio and Stream Functions
    • New Range Xtender Function prolongs time between cleanings
    • Features a lower power consumption and an all black exterior
    CAD 499.99
    CAD 499.99
  • Quick-Draw Corner Aquarium Filter
    Small corner filter ideal for small tanks or fry tanks. Includes: air stone, water outlet tube, 5 feet of high quality kink resistant airline tubing, activated carbon and filter floss. All thats needed is an air pump.
    CAD 14.99
    CAD 14.99
  • Eheim Pro 3 2080 Canister Filter
    This filter system is filled with the convenient priming support at "the push of a button" and immediately the system starts working. Thanks to the easy-to-use filter baskets, cleaning or replacement of the filter media is much easier.
    CAD 669.99
    CAD 669.99
  • Eheim Pro 3 Thermofilter - 2180
    Eheim 2180 Thermofilter comes with a stainless steel heater built right into the bottom of the filter! This filter will ensure even heating and effective filtration of your aquarium water with no unsightly sumbersible heaters needed. Media not Included.
    CAD 799.99
    CAD 799.99
  • SuperClean 10 Internal Power Filter
    • Compact internal power filter for aquariums up to 10 gallons
    • Includes Crystal Bio-Chem Zorb cartridge for superior filtration
    • Quickly eliminates unwanted debris, discoloration, and odors
    • Brilliant design enables effortless installation and maintenance
    • Suitable for use in both freshwater and saltwater aquariums
    CAD 19.99
    CAD 19.99
  • Ista Surface Skimmer
    • Eliminates surface films caused by protein and organisms
    • Improves the exchange of oxygen and penetration of light
    • Self-floating design adjusts according to the water level
    • Marine aquariums with no surface overflow benefit greatly
    • Easy to install and maintain - fits all types of canister filters
    CAD 12.99
    CAD 12.99
  • Kent Marine Cyclone Media Reactor
    • Multi-purpose reactor for fluidized and traditional media setups
    • Creates a powerful vortex to maximize water-to-media contact time
    • Versatile reactor is great for hang-on and in-sump applications
    • Includes a reliable 98 gph water pump with adjustable flow rate
    • For freshwater aquariums up to 300 gallons, saltwater up to 150 gallons
    CAD 119.99
    CAD 119.99
  • Pro Clear Aquatic Systems Freedom 4-in-1 Sump 100 - 16" (Cube)
    • Quiet, sturdy, easy to maintain saltwater filtration system
    • The Eurobrace around the rim of the sump prevents bowing
    • Notches for holding wires, dosing tubes & return pump tubing
    • Refugium can also be converted to a wet/dry trickle filter
    • Adjustable flow-gate through refugium section of the sump
    CAD 369.99
    CAD 369.99
  • Economy Corner Filter
    Ideal for small aquariums and aquarium kits. Lee's low-cost, high-quality Economy Corner filter keeps tanks sparkling clean without the use of an airstone.
    CAD 4.99
    CAD 4.99
  • Hagen AquaClear Quick Filter Powerhead Attachment
    The Large Quick Filter attachment converts AquaClear Power heads into powerful filters for rapid removal of most particulate waste. The extra large central core holds an ample supply of granular filter material for supplementary filtration.
    CAD 16.99
    CAD 16.99
  • Pro Clear Aquatic Systems Freedom 4-in-1 Sump 200 - 32"
    • Quiet, sturdy, easy to maintain saltwater filtration system
    • The Eurobrace around the rim of the sump prevents bowing
    • Notches for holding wires, dosing tubes & return pump tubing
    • Refugium can also be converted to a wet/dry trickle filter
    • Adjustable flow-gate through refugium section of the sump
    CAD 479.99
    CAD 479.99
  • Lee's Fish Saver Elbows - 1" - 2 pk
    • These elbows fit any 1" uplift tube securely
    • Can be a replacement or an addition part
    • Suitable for under gravel filters systems
    • These elbows are designed clear
    CAD 5.99
    CAD 5.99
  • Aqueon QuietFlow E Internal Power Filter - 10 gal
    • Simple functionality for beginners and professionals
    • Easily attaches against the aquarium with suction cups
    • Use the hang-on feature, securing it with hang-on clips
    • Suitable with the Small Replacement Filter Cartridge
    • Provides chemical, biological & mechanical filtration
    CAD 19.99
    CAD 19.99
  • Pro Clear Aquatic Systems Freedom 4-in-1 Sump 400 - 45"
    • Quiet, sturdy, easy to maintain saltwater filtration system
    • The Eurobrace around the rim of the sump prevents bowing
    • Notches for holding wires, dosing tubes & return pump tubing
    • Refugium can also be converted to a wet/dry trickle filter
    • Adjustable flow-gate through refugium section of the sump
    CAD 599.99
    CAD 599.99
  • Pro Clear Aquatic Systems Freedom Reef Sump 200 - 32"
    • Quiet, sturdy, easy to maintain saltwater filtration system
    • The Eurobrace around the rim of the sump prevents bowing
    • Notches for holding wires, dosing tubes & return pump tubing
    • Adjustable flow-gate through the media container section
    • Bubble diffuser tubes help silence bubbles as water enters
    CAD 399.99
    CAD 399.99
  • Tetra Whisper Power Filter - 20
    • Has 3-way Mechanical, Biological and Chemical filtration
    • Ideal for freshwater aquariums up to 20 gal (105 GPH)
    • Provides silent, long- lasting and reliable performance
    • High quality magnetic impeller is the only moving part!
    • Built-in flow control knob for slow rates during feeding
    CAD 25.99
    CAD 25.99
  • Xaqua InOut Complete Overflow System
    • Complete easy-to-install drainage and return system
    • Mounted externally with no impact on tank volume
    • Rates for a maximum pump capacity of 660 gallons per hour
    • Hydrodynamic Pulsing feature reduces noise and creates waves
    • No moving parts and no additional fittings required
    CAD 139.99
    CAD 139.99
  • Aqueon QuietFlow E Internal Power Filter - 40 gal
    • Simple functionality for beginners and professionals
    • Easily attaches against the aquarium with suction cups
    • Use the hang-on feature, securing it with hang-on clips
    • Suitable with the Large Replacement Filter Cartridge
    • Provides chemical, biological & mechanical filtration
    CAD 42.99
    CAD 42.99
  • Lee's Premium Under Gravel Filter - 75/90 gal
    • It circulates water flow through the gravel bed
    • Incorporates two Premium Carbon Cartridges
    • Includes Discard-a-Stone & a fish-saver elbow
    • The telescoping ring adjusts uplift tube height
    • Maximize water quality by using a power filter!
    CAD 99.99
    CAD 99.99
  • Tetra Whisper Power Filter - 30
    • Has 3-way Mechanical, Biological and Chemical filtration
    • Ideal for freshwater aquariums up to 30 gal (145 GPH)
    • Provides silent, long- lasting and reliable performance
    • High quality magnetic impeller is the only moving part!
    • Built-in flow control knob for slow rates during feeding
    CAD 32.99
    CAD 32.99
  • Lee's Under Gravel Filter - 10 gal
    • Turn your gravel bed into a biological filter
    • Includes plates, airline tubing & uplift tubes
    • Includes air diffusers and carbon cartridges
    • Adjustable 1" uplift tubes for a better flow
    • This Filter could be used with a Powerhead
    CAD 24.99
    CAD 24.99
  • Lee's Under Gravel Filter - 20 L/29/26S gal
    • Turn your gravel bed into a biological filter
    • Includes plates, airline tubing & uplift tubes
    • Includes air diffusers and carbon cartridges
    • Adjustable 1" uplift tubes for a better flow
    • This Filter could be used with a Powerhead
    CAD 37.99
    CAD 37.99

    Out of stock

  • Pro Clear Aquatic Systems Freedom 4-in-1 Sump 300 - 37"
    • Quiet, sturdy, easy to maintain saltwater filtration system
    • The Eurobrace around the rim of the sump prevents bowing
    • Notches for holding wires, dosing tubes & return pump tubing
    • Refugium can also be converted to a wet/dry trickle filter
    • Adjustable flow-gate through refugium section of the sump
    CAD 549.99
    CAD 549.99
  • Aqueon QuietFlow E Internal Power Filter - 20 gal
    • Simple functionality for beginners and professionals
    • Easily attaches against the aquarium with suction cups
    • Use the hang-on feature, securing it with hang-on clips
    • Suitable with the Medium Replacement Filter Cartridge
    • Provides chemical, biological & mechanical filtration
    CAD 32.99
    CAD 32.99
  • Aqueon QuietFlow E Internal Power Filter - 3 gal
    • Simple functionality for beginners and professionals
    • Easily attaches against the aquarium with suction cups
    • Use the hang-on feature, securing it with hang-on clips
    • Suitable with the X-Small Replacement Filter Cartridge
    • This 3 gal model will only provide chemical filtration
    CAD 16.99
    CAD 16.99
  • Pro Clear Aquatic Systems Freedom Reef Sump 400 - 45"
    • Quiet, sturdy, easy to maintain saltwater filtration system
    • The Eurobrace around the rim of the sump prevents bowing
    • Notches for holding wires, dosing tubes & return pump tubing
    • Adjustable flow-gate through the media container section
    • Bubble diffuser tubes help silence bubbles as water enters
    CAD 529.99
    CAD 529.99
  • Lee's Under Gravel Filter - 40/55 gal
    • Turn your gravel bed into a biological filter
    • Includes plates, airline tubing & uplift tubes
    • Includes air diffusers and carbon cartridges
    • Adjustable 1" uplift tubes for a better flow
    • This Filter could be used with a Powerhead
    CAD 61.99
    CAD 61.99
  • Pro Clear Aquatic Systems Freedom Reef Sump 300 - 37"
    • Quiet, sturdy, easy to maintain saltwater filtration system
    • The Eurobrace around the rim of the sump prevents bowing
    • Notches for holding wires, dosing tubes & return pump tubing
    • Adjustable flow-gate through the media container section
    • Bubble diffuser tubes help silence bubbles as water enters
    CAD 479.99
    CAD 479.99
  • Tetra Whisper Power Filter - 40
    • Has 3-way Mechanical, Biological and Chemical filtration
    • Ideal for freshwater aquariums up to 40 gal (210 GPH)
    • Provides silent, long- lasting and reliable performance
    • High quality magnetic impeller is the only moving part!
    • Built-in flow control knob for slow rates during feeding
    CAD 37.99
    CAD 37.99
  • Tetra Whisper Power Filter - 60
    • Has 3-way Mechanical, Biological and Chemical filtration
    • Ideal for freshwater aquariums up to 60 gal (330 GPH)
    • Provides silent, long- lasting and reliable performance
    • High quality magnetic impeller is the only moving part!
    • Built-in flow control knob for slow rates during feeding
    CAD 52.99
    CAD 52.99
  • Lee's Premium Under Gravel Filter - 30/45 gal
    • It circulates water flow through the gravel bed
    • Incorporates two Premium Carbon Cartridges
    • Includes Discard-a-Stone & a fish-saver elbow
    • The telescoping ring adjusts uplift tube height
    • Maximize water quality by using a power filter!
    CAD 56.99
    CAD 56.99

    Out of stock

  • Lee's Quick & Easy Corner Filter - Small
    • Mechanical filtration in smaller aquariums
    • Demonstrates maximum water circulation
    • It easily attaches to your airline and pump
    • The suction cup mounts assist with stability
    • Window for maintenance viewing purposes
    CAD 17.99
    CAD 17.99

    Out of stock

  • Lee's Triple-Flow Corner Filter - Small
    • Maximum efficiency for up to 45 gallon aquariums
    • This excellent model is made with three intake vents
    • Ideally used for beginners, breeder/ isolation tanks
    • Perfect solution for a fundamental or back-up filter
    • Use for biological, chemical or mechanical filtration
    CAD 7.99
    CAD 7.99

    Out of stock

  • Tom Aquatics Pre-Filter for Aqua Lifter
    • Suction pre-filter captures free-floating debris
    • Prevents detritus accumulation in your Aqua-Lifter pump
    • Helps ensure optimal pump performance
    • Transparent casing shows when insert requires replacement
    • Installs with standard airline tubing
    CAD 7.99
    CAD 7.99
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