What are fish tank filters?

Fish tank filters are devices necessary to maintaining clean water so your fish and plants can thrive. Filters usually consist of three filtration elements: mechanical, chemical, and biological.

Can an aquarium survive without a filter?

While it might be possible for an aquarium to survive without a filter, it's not recommended, especially if you have fish in the tank. A filtration system not only makes maintaining an aquarium easier, with fewer water changes required, but it also provides a better environment for both fish and plants.

Can a filter be too powerful for an aquarium?

Yes, fish tank filters can be too powerful for an aquarium and result in negative effects. For example, if a filter is too powerful with an overly strong water flow, it can cause excess stress to your fish. Filters that are too powerful can also potentially suck fish into the intake.

Can you over filter a fish tank?

Yes, you can over filter a fish tank if the aquarium filter is too strong and creating an excessively strong water flow. This can cause stress to your fish and even lead to nutrient deficiency in the tank.

Aquarium & Fish Tank Filters - Page 2 (Free Shipping)

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Tetra Whisper Aquarium Internal Filter, Black, 4-gal slide 2 of 4

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Tetra Whisper Aquarium Internal Filter, Black, 4-gal

Rated 4 out of 5 stars

40

$12.87 Chewy Price

$18.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

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OASE Indoor Aquatics CrystalSkim 350 Fish Filter slide 2 of 8

OASE Indoor Aquatics CrystalSkim 350 Fish Filter slide 3 of 8

OASE Indoor Aquatics CrystalSkim 350 Fish Filter slide 4 of 8

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OASE Indoor Aquatics CrystalSkim 350 Fish Filter

Rated 3.6 out of 5 stars

16

$39.99 Chewy Price

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Free 1-3 day delivery on first-time orders
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Fluval Aquarium Power Filter, 70-gal slide 2 of 9

Fluval Aquarium Power Filter, 70-gal slide 3 of 9

Fluval Aquarium Power Filter, 70-gal slide 4 of 9

Fluval Aquarium Power Filter, 70-gal slide 5 of 9

Fluval Aquarium Power Filter, 70-gal slide 6 of 9

Fluval Aquarium Power Filter, 70-gal slide 7 of 9

Fluval Aquarium Power Filter, 70-gal slide 8 of 9

Fluval Aquarium Power Filter, 70-gal slide 9 of 9

Fluval Aquarium Power Filter, 70-gal

Rated 4 out of 5 stars

209

$54.53 Chewy Price

($0.78/gl) Price per Unit

$79.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

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Penn-Plax Decorative Fish Aquarium Filter slide 2 of 7

Penn-Plax Decorative Fish Aquarium Filter slide 3 of 7

Penn-Plax Decorative Fish Aquarium Filter slide 4 of 7

Penn-Plax Decorative Fish Aquarium Filter slide 5 of 7

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Penn-Plax Decorative Fish Aquarium Filter

Rated 4.3 out of 5 stars

9

$9.99 Chewy Price

$49.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Lifegard Submersible Nano Filter with 92 gph Pump, Gray, 30-gal

Rated 3.6 out of 5 stars

17

$18.49 Chewy Price

Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 13 and Apr 17

Aqueon QuietFlow 20/75 Phosphate Remover Specialty Aquarium Filter Pad

Rated 4.4 out of 5 stars

28

$8.99 Chewy Price

($8.99/ea) Price per Unit

$12.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Jebao Multi-Channel Aquarium Auto Dosing Pump, 4 Channel

Rated 3.5 out of 5 stars

11

$69.89 Chewy Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

AquaReady 3 Stage 75 GPD RO System Filter, White

Rated 4.7 out of 5 stars

6

$69.99 Chewy Price

$143.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Marineland Magniflow 220 Canister Freshwater & Saltwater Aquarium Filter, Up to 55-gal

Rated 3.4 out of 5 stars

58

$155.57 Chewy Price

$227.39 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Lee's Aquarium & Pets Under Gravel Aquarium Filter, 20-gal

Rated 4.4 out of 5 stars

32

$25.86 Chewy Price

($1.30/gl) Price per Unit

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Eheim compactON 300 Aquarium Pump

Rated 3.3 out of 5 stars

7

$25.95 Chewy Price

$28.55 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Tetra Pond Skimmer Replacement Pad

Rated 4.7 out of 5 stars

20

$12.99 Chewy Price

$14.49 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

SunGrow Hang On Back Aquarium HOB Filter for Small Turtle & Betta Fish Tank Maintenance

Rated 3.9 out of 5 stars

34

$9.99 Chewy Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

OASE Indoor Aquatics Filtosmart 60 External Fish Filter

Rated 5 out of 5 stars

1

$64.30 Chewy Price

$69.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Penn-Plax Cascade 300 Power Hang-On Filter, 100-gal

Rated 4 out of 5 stars

51

$59.99 Chewy Price

($0.60/gl) Price per Unit

$92.99 List Price

Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 11 and Apr 14

AquaZen Nano Internal Corner Filter

Rated 3 out of 5 stars

1

$29.99 Chewy Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aqueon Submersible Internal Aquarium Filter, 40-gal

Rated 4.3 out of 5 stars

36

$49.95 Chewy Price

($1.25/gl) Price per Unit

$52.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Seapora Aqua Pulse 20 Circulating Pump, 2640-GPH

Rated 5 out of 5 stars

3

$26.76 Chewy Price

$32.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Fluval Sea CP3 Circulation Fish Pump

Rated 5 out of 5 stars

7

$39.39 Chewy Price

$47.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Marineland Magnum Polishing Internal Filter, 97-gal

Rated 3.9 out of 5 stars

78

$92.82 Chewy Price

($0.96/gl) Price per Unit

$102.69 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Zoo Med Betta Clean Aquarium Filter

Rated 3.8 out of 5 stars

9

$18.93 Chewy Price

$24.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Eheim Pro 4+ 350 Aquarium Canister Filter

Rated 3.9 out of 5 stars

18

$299.95 Chewy Price

$329.95 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Tetra GreenFree Ultraviolet Pond Clarifier, 5-watt

Rated 4.6 out of 5 stars

70

$80.00 Chewy Price

$191.09 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

AA Aquarium Green Killing Machine Internal UV System, 9-watt

Rated 4.3 out of 5 stars

445

$64.98 Chewy Price

$79.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

OASE Indoor Aquatics Biocompact 25 Internal Fish Filter

Rated 2 out of 5 stars

1

$34.99 Chewy Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Penn-Plax Cascade 170 Internal Aquarium Filter

Rated 4.4 out of 5 stars

11

$11.99 Chewy Price

$23.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Pond Boss Pond Filter Kit

Rated 4.7 out of 5 stars

18

$91.07 Chewy Price

$114.99 List Price

Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 11 and Apr 16

Aqueon QuietFlow 20/75 Carbon Reducing Specialty Aquarium Filter Pads

Rated 5 out of 5 stars

10

$4.97 Chewy Price

($4.97/ea) Price per Unit

$12.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Jebao Marine Submersible Tank Pump with Wave Controller, 3693 GPH

Rated 5 out of 5 stars

17

$86.94 Chewy Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

AquaReady Refugium Filter, +20-gal

Rated 5 out of 5 stars

1

$149.99 Chewy Price

($7.50/gl) Price per Unit

$179.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Marineland Magniflow 400 Canister Freshwater & Saltwater Aquarium Filter, Up to 100-gal

Rated 3.8 out of 5 stars

65

$216.27 Chewy Price

$311.29 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Lifegard Quiet One Aquarium Pump, 1,022 GPH

Rated 2.6 out of 5 stars

5

$92.49 Chewy Price

$133.24 List Price

Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 17

Eheim Aquarium Prefilter

Rated 4.4 out of 5 stars

7

$14.75 Chewy Price

$16.22 List Price

Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Tetra Pond Tubing, Corrugated, 1.25-in x 20-ft

Rated 4.1 out of 5 stars

43

$38.03 Chewy Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Bundle and Save 10%

Bundle: Marineland Bio-Wheel Emperor Rite-Size E Filter Cartridge, 4 count + 400 Aquarium Power...

Rated 4.9 out of 5 stars

16

$88.41 Chewy Price

$98.76 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

OASE Indoor Aquatics CrystalSkim 600 Fish Filter

Rated 3.3 out of 5 stars

3

$59.99 Chewy Price

$64.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Aquarium & Fish Tank Filters

Tetra Whisper Aquarium Internal Filter, Black, 4-gal

OASE Indoor Aquatics CrystalSkim 350 Fish Filter

Fluval Aquarium Power Filter, 70-gal

Penn-Plax Decorative Fish Aquarium Filter

Lifegard Submersible Nano Filter with 92 gph Pump, Gray, 30-gal

Aqueon QuietFlow 20/75 Phosphate Remover Specialty Aquarium Filter Pad

Jebao Multi-Channel Aquarium Auto Dosing Pump, 4 Channel

AquaReady 3 Stage 75 GPD RO System Filter, White

Marineland Magniflow 220 Canister Freshwater & Saltwater Aquarium Filter, Up to 55-gal

Lee's Aquarium & Pets Under Gravel Aquarium Filter, 20-gal

Eheim compactON 300 Aquarium Pump

Tetra Pond Skimmer Replacement Pad

SunGrow Hang On Back Aquarium HOB Filter for Small Turtle & Betta Fish Tank Maintenance

OASE Indoor Aquatics Filtosmart 60 External Fish Filter

Penn-Plax Cascade 300 Power Hang-On Filter, 100-gal

AquaZen Nano Internal Corner Filter

Aqueon Submersible Internal Aquarium Filter, 40-gal

Seapora Aqua Pulse 20 Circulating Pump, 2640-GPH

Fluval Sea CP3 Circulation Fish Pump

Marineland Magnum Polishing Internal Filter, 97-gal

Zoo Med Betta Clean Aquarium Filter

Eheim Pro 4+ 350 Aquarium Canister Filter

Tetra GreenFree Ultraviolet Pond Clarifier, 5-watt

AA Aquarium Green Killing Machine Internal UV System, 9-watt

OASE Indoor Aquatics Biocompact 25 Internal Fish Filter

Penn-Plax Cascade 170 Internal Aquarium Filter

Pond Boss Pond Filter Kit

Aqueon QuietFlow 20/75 Carbon Reducing Specialty Aquarium Filter Pads

Jebao Marine Submersible Tank Pump with Wave Controller, 3693 GPH

AquaReady Refugium Filter, +20-gal

Marineland Magniflow 400 Canister Freshwater & Saltwater Aquarium Filter, Up to 100-gal

Lifegard Quiet One Aquarium Pump, 1,022 GPH

Eheim Aquarium Prefilter

Tetra Pond Tubing, Corrugated, 1.25-in x 20-ft

OASE Indoor Aquatics CrystalSkim 600 Fish Filter

Category

UV Sterilizers

Sponge & Box Filters

Hang-On-Back Filters

Internal Tank Filters

External Aquarium Filters

Sumps & Refugium

Protein Skimmers

Water Pumps & Power Heads

Media Reactors

Pond Filters

Filter Socks & Rollers

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