Do all fish tanks and aquariums need filters?

All fish tanks and aquariums do need filters to clean the water and prevent the buildup of toxic substances. Different aquariums may need different types of aquarium water filters, depending on the fish inside them and whether they are saltwater or freshwater tanks. Chewy carries a wide range of fish tank filters to suit a variety of filtration needs.

What are the best aquarium filters?

The best aquarium filters are those that effectively clean the water by removing chemical impurities and biological toxins in addition to filtering dirt and debris. Choose a filter that is suited to the type of tank you have, as saltwater tanks have different filtration needs than freshwater tanks. Sponge or air-powered fish tank water filters may be adequate for tanks with low filtration needs, but power or hang-on-back filters, canister filters and wet/dry filters can provide more powerful filtration.

What size fish tank filter do I get?

Get a fish tank filter in a size that is suitable for your fish tank. Most fish tank filters list the tank capacity they are suited for, and they also usually list how many gallons of water per minute they can filter.

What are the different types of filters for fish tanks?

The different types of filters for fish tanks are sponge filters, hang on back (HOB) filters, canister filters, trickle or wet/dry filters, box filters and under gravel filters. Filters perform any of three main types of aquarium filtration: biological, mechanical and chemical. Many filters are designed to perform several or all three filtration functions at once, providing your fish with clean and clear water that is free from debris, chemical buildup and harmful toxins.

How often do you need to change aquarium filters?

You need to change aquarium filters at different times depending on which kind you have. Mechanical filters don't need to be replaced until they stop filtering or start falling apart, and replacing them too often can disrupt the balance of the aquarium. The chemical filter should be changed every month, or every two months at the very least. Biological filters allow beneficial bacteria to grow, so replace them only when they start to fail or fall apart. Most aquarium filters, including multi-stage fish tank filters, will usually have instructions for use, maintenance and care, so read all the instructions carefully and follow them well.

Aquarium & Fish Tank Filters - Page 5 (Free Shipping)

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Aqueon Quietflow E Internal Power Filter, 10-gal

Rated 3 out of 5 stars

3

$15.77 Chewy Price

$18.49 List Price

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

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Fluval Aquarium Underwater Filter, 12-30 gal slide 2 of 4

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Fluval Aquarium Underwater Filter, 12-30 gal

Rated 3.7 out of 5 stars

3

$61.01 Chewy Price

$76.99 List Price

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

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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

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Fluval Aquarium Power Filter, 70-gal

Rated 3.3 out of 5 stars

3

$62.60 Chewy Price

$79.99 List Price

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

Out of Stock

JBJ Aquarium Rimless Aquariums 76 GPH Bio Aquarium Filter

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

Out of Stock

Dennerle Scaper's Flow Fish Aquarium Filter

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

Out of Stock

Fiji Cube AIO Aqueon DIY Kit, 40-gal

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

Out of Stock

Pond Boss Pond Filter Kit

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

Out of Stock

Lifegard Aquatics Pro-Max UV Fish Pond Sterilizer, 90-watt

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

Out of Stock

Fiji Cube External Overflow Box, 2400 GHP

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

Out of Stock

Hydor Slim Skim Nano Aquarium Internal Protein Skimmer, 35-gal

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

Out of Stock

Savio Livingponds Springflo Waterfall Pond Filter, 22-in

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

Out of Stock

Lifegard Turbo Reactor-Nano Side Flow Aquarium Filter, 75-gal

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

Out of Stock

Hydor Slim Skim Nano Internal Aquarium Protein Skimmer Fish Filter, 35-gal, Clear & Black

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

Out of Stock

Fiji Cube Quiet Filter Sock Holder, Double

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

Out of Stock

Anjon Variable Speed Control Pond Filter & Remote

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

Out of Stock

Anjon Bio-Pro 3000 Pressure Pond Filter

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

Out of Stock

Lifegard Aquatics Trio Pond Fish Pond Filter

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

Out of Stock

Savio Compact Skimmerfilter Base Unit

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

Out of Stock

Lifegard Turbo Reactor-Large Side Flow Aquarium Filter, 250-gal

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

Out of Stock

Anjon Variable Speed Control Pond Filter

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

Out of Stock

Lifegard Aquatics Uno Pond Fish Pond Filter Kit

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

Out of Stock

Savio Livingponds Versatile Pond Filter

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

Out of Stock

Savio Stainless Steel UVinex Pond Filter System, 50-watt

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

Out of Stock

Savio Standard Skimmerfilter Weir Assembly, 8.5-in

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

Out of Stock

Savio Compact Skimmerfilter & 8.5-in Weir Assembly

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

Out of Stock

Hydor Professional Aquarium Canister Filter, 250 GPH

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

Out of Stock

Aquatop PF40-UV Hang-On Back Aquarium UV Sterilizer Power Filter, 40-gal

Rated 4 out of 5 stars

3

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

Out of Stock

Coralife Super Protein Aquarium Skimmer & Pump, 220 gal

Rated 3.3 out of 5 stars

3

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

Out of Stock

Simplicity 120 DC In Sump Protein Skimmer

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

Out of Stock

Simplicity 240 DC In Sump Protein Skimmer

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

Out of Stock

Simplicity 320 DC In Sump Protein Skimmer

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

Out of Stock

Simplicity 540 DC In Sump Protein Skimmer

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

Out of Stock

Simplicity 800 DC In Sump Protein Skimmer

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

Out of Stock

Anjon Completely Clear All-In-One Unit

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

Out of Stock

Savio Living Ponds Springflo Pressure Pond Filter, 1000 GPH

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

Out of Stock

Savio Compact Skimmerfilter Weir Assembly, 8.5-in

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

Out of Stock

Savio Livingponds Waterfall Pond Filter

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

Out of Stock

Savio HighFlow Compact Pond Skimmer, 6-in

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

Out of Stock

Danner Manufacturing Pondmaster Compact Pressurized Aquarium Filter, 250-gal

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

Aquarium & Fish Tank Filters

Aqueon Quietflow E Internal Power Filter, 10-gal

Fluval Aquarium Underwater Filter, 12-30 gal

Fluval Aquarium Power Filter, 70-gal

JBJ Aquarium Rimless Aquariums 76 GPH Bio Aquarium Filter

Dennerle Scaper's Flow Fish Aquarium Filter

Fiji Cube AIO Aqueon DIY Kit, 40-gal

Pond Boss Pond Filter Kit

Lifegard Aquatics Pro-Max UV Fish Pond Sterilizer, 90-watt

Fiji Cube External Overflow Box, 2400 GHP

Hydor Slim Skim Nano Aquarium Internal Protein Skimmer, 35-gal

Savio Livingponds Springflo Waterfall Pond Filter, 22-in

Lifegard Turbo Reactor-Nano Side Flow Aquarium Filter, 75-gal

Hydor Slim Skim Nano Internal Aquarium Protein Skimmer Fish Filter, 35-gal, Clear & Black

Fiji Cube Quiet Filter Sock Holder, Double

Anjon Variable Speed Control Pond Filter & Remote

Anjon Bio-Pro 3000 Pressure Pond Filter

Lifegard Aquatics Trio Pond Fish Pond Filter

Savio Compact Skimmerfilter Base Unit

Lifegard Turbo Reactor-Large Side Flow Aquarium Filter, 250-gal

Anjon Variable Speed Control Pond Filter

Lifegard Aquatics Uno Pond Fish Pond Filter Kit

Savio Livingponds Versatile Pond Filter

Savio Stainless Steel UVinex Pond Filter System, 50-watt

Savio Standard Skimmerfilter Weir Assembly, 8.5-in

Savio Compact Skimmerfilter & 8.5-in Weir Assembly

Hydor Professional Aquarium Canister Filter, 250 GPH

Aquatop PF40-UV Hang-On Back Aquarium UV Sterilizer Power Filter, 40-gal

Coralife Super Protein Aquarium Skimmer & Pump, 220 gal

Simplicity 120 DC In Sump Protein Skimmer

Simplicity 240 DC In Sump Protein Skimmer

Simplicity 320 DC In Sump Protein Skimmer

Simplicity 540 DC In Sump Protein Skimmer

Simplicity 800 DC In Sump Protein Skimmer

Anjon Completely Clear All-In-One Unit

Savio Living Ponds Springflo Pressure Pond Filter, 1000 GPH

Savio Compact Skimmerfilter Weir Assembly, 8.5-in

Savio Livingponds Waterfall Pond Filter

Savio HighFlow Compact Pond Skimmer, 6-in

Danner Manufacturing Pondmaster Compact Pressurized Aquarium Filter, 250-gal

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