Fish Tank Filters in Fish Tank Filters and Pumps(1000+)
driamor 16 Pack Large Filter Cartridge for Tetra Whisper Bio-Bag Filters, with Activated Carbon and Zeolite, Compatible with Tetra Whisper Filters 20i,40i/IQ20,30,45,60/PF20,30,40,60 $27.99

driamor 16 Pack Large Filter Cartridge for Tetra Whisper Bio-Bag Filters, with Activated Carbon and Zeolite, Compatible with Tetra Whisper Filters 20i,40i/IQ20,30,45,60/PF20,30,40,60
Aquarium Filter U-V Light 3 in 1 Fish Tank Filter, Tawatiler 215 GPH Green Water Cleaning Filter Pump, Double Waterfall 8W Quiet Hang on Filter for 30-60 Gallon Aquariums Saltwater Freshwater $34.99

Aquarium Filter U-V Light 3 in 1 Fish Tank Filter, Tawatiler 215 GPH Green Water Cleaning Filter Pump, Double Waterfall 8W Quiet Hang on Filter for 30-60 Gallon Aquariums Saltwater Freshwater
UPETTOOLS Aquarium Internal Filter, 4 in 1 Fish Tank Filters Pump Sponge Filter Ultra Silent Adjustable Submersible $16.99

UPETTOOLS Aquarium Internal Filter, 4 in 1 Fish Tank Filters Pump Sponge Filter Ultra Silent Adjustable Submersible
Tawatiler 12 Pack Small Filter Cartridges Compatible with Tetra Whisper Bio-Bag Filter Small Replacement Filter Cartridges Compatible with Tetra Whisper 3i Internal Filters $11.99

Tawatiler 12 Pack Small Filter Cartridges Compatible with Tetra Whisper Bio-Bag Filter Small Replacement Filter Cartridges Compatible with Tetra Whisper 3i Internal Filters
50+ bought since yesterday Tetra Whisper Internal Filter 5 to 10 Gallon, with Air Pump, for Aquariums $15.97 Was $20.99

Tetra Whisper Internal Filter 5 to 10 Gallon, with Air Pump, for Aquariums
Best seller Tetra Whisper Advanced Power Filter 30-60 Gallons, for Freshwater & Saltwater Aquariums $49.00 $49.00/count

Tetra Whisper Advanced Power Filter 30-60 Gallons, for Freshwater & Saltwater Aquariums
Best seller Aqueon SmartClean Power Filter with EcoRenew Filter Cartridge 10-20 Gallon $24.95

Aqueon SmartClean Power Filter with EcoRenew Filter Cartridge 10-20 Gallon
100+ bought since yesterday Tetra Whisper Bio-Bag Ready-to-Use Disposable Filter Cartridges for Aquariums, Large, 3 Count $6.47

Tetra Whisper Bio-Bag Ready-to-Use Disposable Filter Cartridges for Aquariums, Large, 3 Count
Best seller Tetra Whisper Internal Filter 10 to 20 Gallons, with Air Pump, for Aquariums $26.12

Tetra Whisper Internal Filter 10 to 20 Gallons, with Air Pump, for Aquariums
Overall pick Tetra Whisper Bio-Bag Disposable Filter Cartridges for Aquariums, Medium, 3 Count $6.47 $2.16/count

Tetra Whisper Bio-Bag Disposable Filter Cartridges for Aquariums, Medium, 3 Count
Tawatiler 8 Packs Medium Replacement Filter Cartridges for Tetra Whisper Bio-Bag Filters 10i PF10 $17.99 Was $19.99

Tawatiler 8 Packs Medium Replacement Filter Cartridges for Tetra Whisper Bio-Bag Filters 10i PF10
2-Pack Bio-Wheel Aquarium Filter Replacement PRBW2350B, Compatible with Ocean Island Penguin 200/200B/350/350B Hang-On Power Filters, Assembled Filter Parts for Cartridge Attachment $13.89

2-Pack Bio-Wheel Aquarium Filter Replacement PRBW2350B, Compatible with Ocean Island Penguin 200/200B/350/350B Hang-On Power Filters, Assembled Filter Parts for Cartridge Attachment
Aqueon SmartClean Power Filter with EcoRenew Filter Cartridge 30-50 Gallon $48.72

Aqueon SmartClean Power Filter with EcoRenew Filter Cartridge 30-50 Gallon
Best seller Vibrant Life Medium Power Filter with Cartridge for 5-10 gal Fish Aquariums $17.83 $17.83/count

Vibrant Life Medium Power Filter with Cartridge for 5-10 gal Fish Aquariums
Aqueon SmartClean Power Filter with EcoRenew Filter Cartridge 20-30 Gallon $34.95

Aqueon SmartClean Power Filter with EcoRenew Filter Cartridge 20-30 Gallon
Aqua-Tech Ultra Quiet Power Filter for Aquariums 30-60 Gallons $41.98 $41.98/count

Aqua-Tech Ultra Quiet Power Filter for Aquariums 30-60 Gallons
Tetra Whisper IQ Power Filter 20 Gallons, 130 GPH, With Stay Clean Technology $23.17 $23.17/count

Tetra Whisper IQ Power Filter 20 Gallons, 130 GPH, With Stay Clean Technology
50+ bought since yesterday Aqua-Tech EZ-Change Replacement #3 Aquarium Filter Cartridge, 6 Pack $15.34

Aqua-Tech EZ-Change Replacement #3 Aquarium Filter Cartridge, 6 Pack
Aqua-Tech Ultra Quiet Power Filter, For Aquariums 10-20 Gallons $20.98 $20.98/count

Aqua-Tech Ultra Quiet Power Filter, For Aquariums 10-20 Gallons
Best seller Aqua-Tech EZ Change Replacement Carbon Filter Cartridges for Aquariums, #3 Size, 3 Count $7.67 $2.56/count

Aqua-Tech EZ Change Replacement Carbon Filter Cartridges for Aquariums, #3 Size, 3 Count
Driamor Zeolite Ammonia Reducer Filter Pads for Aqueon QuietFlow LED PRO & Power Filter (8 Pack) $23.39

Driamor Zeolite Ammonia Reducer Filter Pads for Aqueon QuietFlow LED PRO & Power Filter (8 Pack)
WEINFUN Aquarium Internal Silent Filter, 13W Power with Aeration System, for 10-50 Gallon Tanks $19.99

WEINFUN Aquarium Internal Silent Filter, 13W Power with Aeration System, for 10-50 Gallon Tanks
Aqueon QuietFlow Internal Filter with SmartClean Technology Extra Small $18.49

Aqueon QuietFlow Internal Filter with SmartClean Technology Extra Small
Vibrant Life Large Power Filter with Cartridge for 10- to 20-Gallon Fish Aquariums $23.78 $23.78/count

Vibrant Life Large Power Filter with Cartridge for 10- to 20-Gallon Fish Aquariums
Aqua-Tech EZ-Change Aquarium Filter Cartridge for 10-20G Filters, 3pk $7.67 $2.56/ea

Aqua-Tech EZ-Change Aquarium Filter Cartridge for 10-20G Filters, 3pk
Aqua-Tech Ultra Quiet Power Filter, For Aquariums 20-40 Gallons $41.92 $41.92/count

Aqua-Tech Ultra Quiet Power Filter, For Aquariums 20-40 Gallons
Tetra Whisper IQ Power Filter for Aquariums up to 60 Gallons, 300 GPH, with Stay Clean Technology $50.77 $50.77/count

Tetra Whisper IQ Power Filter for Aquariums up to 60 Gallons, 300 GPH, with Stay Clean Technology
Tetra Whisper Replacement Carbon Aquarium Filter Cartridges, Med 6 count $9.43 $1.57/ea

Tetra Whisper Replacement Carbon Aquarium Filter Cartridges, Med 6 count
Marineland Penguin Bio-Wheel 75 GPH Power Filter, Multi-Stage Aquarium Filtration up to 10 Gallons $16.51 $16.51/count

Marineland Penguin Bio-Wheel 75 GPH Power Filter, Multi-Stage Aquarium Filtration up to 10 Gallons
Aquarium Filter U-V Light 3 in 1 Fish Tank Filter, Tawatiler 215 GPH Green Water Cleaning Filter Pump, Double Waterfall 8W Quiet Hang on Filter for 30-60 Gallon Aquariums Saltwater Freshwater $34.99

Aquarium Filter U-V Light 3 in 1 Fish Tank Filter, Tawatiler 215 GPH Green Water Cleaning Filter Pump, Double Waterfall 8W Quiet Hang on Filter for 30-60 Gallon Aquariums Saltwater Freshwater
12 Pack Aquarium Filter Cartridges for Aqua-Tech 30-60/20-40 Gallon Fish Tank Power Filter Replacement, EZ-Change #3 Fish Filter Cartridge $27.99

12 Pack Aquarium Filter Cartridges for Aqua-Tech 30-60/20-40 Gallon Fish Tank Power Filter Replacement, EZ-Change #3 Fish Filter Cartridge
10-20 Gallon Aquarium Filter Replacement for EZ-Change #2, Aquarium Filter Cartridge Fit for AquaTech 10 to 20 Power Filters for Fish Tank(6 Pcs) $13.99

10-20 Gallon Aquarium Filter Replacement for EZ-Change #2, Aquarium Filter Cartridge Fit for AquaTech 10 to 20 Power Filters for Fish Tank(6 Pcs)
Shorefins Air Driven Sponge Filter for Aquariums up to 20 Gallons - Keep Your Fish Tank Clean and Oxygenated $13.58

Shorefins Air Driven Sponge Filter for Aquariums up to 20 Gallons - Keep Your Fish Tank Clean and Oxygenated
Aquarium Power Filter with Surface Skimmer, Lychee External Hang On Back Fish Tank Filter for 10-20 Gallon, 130GPH Quiet, Adjustable Water Flow, 3-Layer Filtration Pump Waterfall for Increasing Oxyge $18.98

Aquarium Power Filter with Surface Skimmer, Lychee External Hang On Back Fish Tank Filter for 10-20 Gallon, 130GPH Quiet, Adjustable Water Flow, 3-Layer Filtration Pump Waterfall for Increasing Oxyge
Aqueon Replacement Filter Cartridges Medium - 6 pack $17.95 87.9 ¢/ea

Aqueon Replacement Filter Cartridges Medium - 6 pack
Penn-Plax Cascade Nano Aquarium Filter & Air Pump Kit for Bettas – Filtration Perfect For Small Fish $9.97 Was $15.00

Penn-Plax Cascade Nano Aquarium Filter & Air Pump Kit for Bettas – Filtration Perfect For Small Fish
Vibrant Life Internal Power Aquarium Filter, for 1-1.5 Gallon Tanks $7.97

Vibrant Life Internal Power Aquarium Filter, for 1-1.5 Gallon Tanks
VNEKVA Aquarium Filter 20-75 Gallon with U-V Light Internal Pump for Fish Turtle Tank $33.99 Was $39.99

VNEKVA Aquarium Filter 20-75 Gallon with U-V Light Internal Pump for Fish Turtle Tank
WEINFUN Aquarium Internal Silent Filter, 13W Power with Aeration System, for 10-50 Gallon Tanks $19.99

WEINFUN Aquarium Internal Silent Filter, 13W Power with Aeration System, for 10-50 Gallon Tanks
DaToo Aquarium Hang On Filter Small Fish Tank Hanging Filter Power Waterfall Filtration System $7.99

DaToo Aquarium Hang On Filter Small Fish Tank Hanging Filter Power Waterfall Filtration System
UPETTOOLS Aquarium Internal Filter, 4 in 1 Fish Tank Filters Pump Sponge Filter Ultra Silent Adjustable Submersible $16.99

UPETTOOLS Aquarium Internal Filter, 4 in 1 Fish Tank Filters Pump Sponge Filter Ultra Silent Adjustable Submersible
Aqua-Tech EZ-Change #1 Filter Cartridge for 5-15 Filters, 3 Pack $7.67

Aqua-Tech EZ-Change #1 Filter Cartridge for 5-15 Filters, 3 Pack
6 Pack Filter Cartridge for Tetra Whisper Bio-Bag Filters, Large Replacement Filter Cartridges for Aquariums Compatible with Tetra Whisper Filters 20i,40i/IQ20,30,45,60/PF20,30,40,60 and ReptoFilter $13.99

6 Pack Filter Cartridge for Tetra Whisper Bio-Bag Filters, Large Replacement Filter Cartridges for Aquariums Compatible with Tetra Whisper Filters 20i,40i/IQ20,30,45,60/PF20,30,40,60 and ReptoFilter
VNEKVA 74 GPH Hang-On Aquarium Filter with Surface Skimmer, Adjustable Flow, for 5–10 Gallon Fish Tank & Turtle Tank $18.99 Was $26.99

VNEKVA 74 GPH Hang-On Aquarium Filter with Surface Skimmer, Adjustable Flow, for 5–10 Gallon Fish Tank & Turtle Tank
Tetra Whisper Bio-Bag Disposable Filter Cartridges, for Aquariums $9.99

Tetra Whisper Bio-Bag Disposable Filter Cartridges, for Aquariums
Vibrant Life Internal Power Filter, for 2.5-3 Gallon Tanks $9.98

Vibrant Life Internal Power Filter, for 2.5-3 Gallon Tanks
Aqueon QuietFlow Internal Filter with SmartClean Technology Small $20.88

Aqueon QuietFlow Internal Filter with SmartClean Technology Small
Tetra Whisper PF10 Power Filter for 5 to 10 Gallon Aquariums, Quiet 3-Stage Aquarium Filtration $19.47

Tetra Whisper PF10 Power Filter for 5 to 10 Gallon Aquariums, Quiet 3-Stage Aquarium Filtration
Tetra Whisper IQ Power Filter 30 Gallons, 175 GPH, With Stay Clean Technology $31.97 $31.97/count

Tetra Whisper IQ Power Filter 30 Gallons, 175 GPH, With Stay Clean Technology
(3 pack) Aqua Culture Filter Cartridges-S-3 Pack $11.19 $1.24/ea

(3 pack) Aqua Culture Filter Cartridges-S-3 Pack
Popular in Fish Tank Filters in Fish Tank Filters and Pumps - Walmart.com
FAQ
How do I pick the right filter size for my fish tank?
Choosing the right filter size depends mainly on your aquarium's volume. Filters are usually rated for specific gallon ranges, so it's best to select one that matches or slightly exceeds your tank's capacity. A filter that's too small may not clean the water effectively, while an oversized filter could create too strong a current for your fish. Additionally, consider the type of fish and plants you have, as some species prefer gentler water flow. Walmart offers a variety of filters suitable for tanks from small 5-gallon setups to larger aquariums, making it easier to find the right fit.
What's the best way to clean and maintain a fish tank filter?
Regular maintenance keeps your filter working efficiently. Here's a simple routine:
- Turn off and unplug the filter before cleaning.
- Rinse filter media in old tank water (not tap water) to preserve beneficial bacteria.
- Replace cartridges or media as recommended by the manufacturer, usually every 3-4 weeks.
- Check for clogs and clean impellers or tubes if needed.
Following these steps helps maintain clear water and a healthy environment for your fish.
Can I use UV filters to improve my aquarium water quality?
UV filters can be a helpful addition to your aquarium setup. They work by exposing water to ultraviolet light, which can reduce free-floating algae, bacteria, and parasites, potentially improving water clarity. However, UV sterilizers should be used alongside a good mechanical and biological filtration system, not as a replacement. It's important to size the UV unit properly for your tank and follow safety instructions to avoid harming your fish or beneficial bacteria. Walmart offers UV clarifiers that can complement your existing filter system.
How often should I replace filter cartridges in my aquarium?
Filter cartridge replacement frequency varies based on tank size, fish load, and filter type. Generally, cartridges should be replaced every 3 to 4 weeks to maintain effective filtration. Overused cartridges can become clogged, reducing water flow and filtration efficiency. Some cartridges are designed to be rinsed and reused a few times before replacement. Always check the manufacturer's guidelines for your specific filter model. Keeping spare cartridges on hand from Walmart can help you stay on top of maintenance without interruption.
What are natural ways to keep my fish tank water clear without chemicals?
Maintaining clear water naturally involves a combination of good filtration and tank care:
- Regular water changes: Replace 10-20% of the water weekly to reduce waste buildup.
- Proper feeding: Avoid overfeeding to minimize leftover food that clouds water.
- Live plants: They absorb excess nutrients that algae feed on.
- Good filtration: Use a quality filter that provides mechanical, biological, and chemical filtration.
- Control light exposure: Limit direct sunlight and aquarium lighting to prevent algae growth.
These practices help maintain a healthy, clear aquarium environment without relying on chemicals.








