Why does my betta fish tank need a filter?

Betta fish tanks need filters so that waste can be removed from the water. When a filter removes waste like ammonia from a betta fish tank, it can help prevent illness and contribute to your pet's well-being.

Which filter is best for a betta fish tank?

The best filter for a betta fish tank depends on the setup. The size of the tank, tank inhabitants, whether there are plants, and other factors all affect the decision. One thing to keep in mind is that betta fish aren't big fans of currents, so a filter with a gentle flow is preferred if it's a small tank with only one betta. Consult with a fish-savvy veterinarian or fish clubs or hobbyists for advice on the best filter for your setup.

Do betta fish need a special filter?

Betta fish don't require a special filter, but they do need a filter to meet their needs. The filter should be able to process the entire tank's water volume four times per hour. Generally, betta fish do better with filters that don't CREATE strong currents, which betta fish dislike.

How often should I change my betta fish filter cartridge?

Many pet parents might change their betta fish filter cartridges once a month. Others, instead of replacing, may opt to rinse the filter in water to preserve some of the good bacteria. However, once you start to see a drop in water flow, regardless of time period, that is when betta fish filter cartridges should be replaced.

Betta Fish Filters, Cartridges & Media - Page 2 (Free Shipping)

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Aqueon Betta Volcano Betta Fish Aquarium Filter

Rated 4.3 out of 5 stars

20

$12.94 Chewy Price

$14.99 List Price

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

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API Bio-Chem Zorb Aquarium Canister Filter Filtration Pouch, Size 6 slide 2 of 6

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API Bio-Chem Zorb Aquarium Canister Filter Filtration Pouch, Size 6

Rated 4.6 out of 5 stars

30

$15.39 Chewy Price

($15.39/ea) Price per Unit

$20.18 List Price

$14.62 Autoship Price

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

Lee's Aquarium & Pets Under Gravel Filters Carbon Cartridges, 2 count

Rated 3.5 out of 5 stars

15

$5.99 Chewy Price

($3.00/ea) Price per Unit

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

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Aqueon Replacement Betta Filter Cartridge, 2 count slide 2 of 8

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Aqueon Replacement Betta Filter Cartridge, 2 count

Rated 4.9 out of 5 stars

13

$6.49 Chewy Price

($3.25/ea) Price per Unit

$6.17 Autoship Price

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

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

Eheim 2215 Canister Carbon Filter Pads, 3 count

Rated 5 out of 5 stars

1

$16.49 Chewy Price

($5.50/ea) Price per Unit

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

Tetra Whisper Aquarium Power Filter, 5-10 gal

Rated 3.2 out of 5 stars

132

$19.47 Chewy Price

$24.39 List Price

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

Marineland Magnum Polishing Internal Canister Filter Floss Sleeve, 3 count

Rated 4.8 out of 5 stars

35

$8.38 Chewy Price

($2.80/ea) Price per Unit

$10.29 List Price

$7.96 Autoship Price

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

Penn-Plax Cascade Aquarium Filt-A-Pack, Medium

Rated 4.7 out of 5 stars

20

$15.24 Chewy Price

($15.24/ea) Price per Unit

$15.99 List Price

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

API Water Softener Pillow, Size 5

Rated 4.2 out of 5 stars

50

$7.58 Chewy Price

($7.58/ea) Price per Unit

$10.68 List Price

$7.20 Autoship Price

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

Koller Products KC05 Aquarium Replacement Filter Cartridges, 6 count

Rated 4.3 out of 5 stars

7

$9.99 Chewy Price

($1.67/ea) Price per Unit

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

API Nitra-Zorb Aquarium Canister Filter Filtration Pouch, Size 6

Rated 4.2 out of 5 stars

47

$17.08 Chewy Price

($17.08/ea) Price per Unit

$24.78 List Price

$16.23 Autoship Price

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

API Filstar XP Super Micro Filtration Aquarium Canister Filter Filtration Pads, 2 count

Rated 4.4 out of 5 stars

14

$13.39 Chewy Price

($6.70/ea) Price per Unit

$15.38 List Price

$12.72 Autoship Price

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

Lee's Aquarium & Pets Round Under Gravel Aquarium Bowl Filter, Small

Rated 3.6 out of 5 stars

7

$10.99 Chewy Price

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

SunGrow Activated Carbon Charcoal Pellets Aquarium Filtration, Cat Litter Box & Water Fountain ...

Rated 4.2 out of 5 stars

41

$5.95 Chewy Price

($0.60/oz) Price per Unit

$13.99 List Price

$5.65 Autoship Price

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

API Bio-Chem Zorb Filter Media Pouch for Crystal Clear Aquarium Water, Size 6, 18 count

Rated 5 out of 5 stars

9

$226.99 Chewy Price

($12.62/ea) Price per Unit

$265.38 List Price

$215.64 Autoship Price

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

Eheim Ehfifix Mechanical Filter Media, 5-L

$26.99 Chewy Price

($5.40/l) Price per Unit

$32.98 List Price

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

Penn-Plax Cascade Aquarium Bio-Sponge 1200 & 1500 Filter, Medium

Rated 4.6 out of 5 stars

12

$14.99 Chewy Price

$15.99 List Price

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

Penn-Plax 3 Pack Canistar Hang-on Filter Replacement Cartridge

Rated 3.7 out of 5 stars

3

$12.36 Chewy Price

($4.12/ea) Price per Unit

$15.99 List Price

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

Eheim Pro 4+ 250 Aquarium Canister Filter

Rated 3.7 out of 5 stars

7

$252.93 Chewy Price

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

Marineland Magniflow 160 Canister Filter

Rated 3 out of 5 stars

4

$115.57 Chewy Price

$174.49 List Price

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

Penn-Plax Cascade Canistar Hang-On Aquarium Filter, Large, Black

Rated 3.7 out of 5 stars

3

$59.99 Chewy Price

$92.99 List Price

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

Eheim 2213 Canister Fine Filter Pads, 3 count

Rated 4.8 out of 5 stars

5

$10.95 Chewy Price

($3.65/ea) Price per Unit

$11.87 List Price

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

Eheim 2213 Canister Coarse Filter Pads, 2 count

Rated 4.5 out of 5 stars

4

$9.99 Chewy Price

($5.00/ea) Price per Unit

$12.10 List Price

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

AquaReady Complete RO System Filter

$159.99 Chewy Price

$191.99 List Price

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

API Super Activated Carbon Aquarium Canister Filter Filtration Pouch, Size 6

Rated 4.3 out of 5 stars

15

$10.99 Chewy Price

($10.99/ea) Price per Unit

$13.18 List Price

$10.44 Autoship Price

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

Eheim Classic 2217 Carbon Fine Filter Pads, 3 pack

Rated 3.8 out of 5 stars

5

$17.57 Chewy Price

($5.86/ea) Price per Unit

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

Penn-Plax Cascade Bio-Sponge 500 Aquarium Filter, Medium

Rated 4.3 out of 5 stars

3

$6.49 Chewy Price

$12.99 List Price

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

Fluval Nano Bio-Foam Filter Media

Rated 3 out of 5 stars

2

$6.49 Chewy Price

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

Eheim Aquarium Prefilter

Rated 4.4 out of 5 stars

7

$14.75 Chewy Price

$17.99 List Price

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

Eheim Classic 2262 Aquarium Filter, 500-gal

$609.99 Chewy Price

($1.22/gl) Price per Unit

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

AquaReady 5 Micron RO System Replacement Sediment Filter, White

Rated 1 out of 5 stars

1

$9.99 Chewy Price

$11.99 List Price

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

Eheim 2211 Canister Fine Filter Pads, 3 count

Rated 4.5 out of 5 stars

8

$11.99 Chewy Price

($4.00/ea) Price per Unit

$12.99 List Price

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

Eheim MECHpro Mechanical Pre-Filter Media, 1-L

Rated 5 out of 5 stars

2

$14.99 Chewy Price

($14.99/l) Price per Unit

$18.45 List Price

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

Eheim Skim350 Coarse Foam Cartridges, 2 count

$6.99 Chewy Price

($3.50/ea) Price per Unit

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

Eheim 2213 Canister Carbon Filter Pads, 3 count

Rated 4.3 out of 5 stars

4

$12.49 Chewy Price

($4.17/ea) Price per Unit

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

Betta Fish Filters, Cartridges & Media

Aqueon Betta Volcano Betta Fish Aquarium Filter

API Bio-Chem Zorb Aquarium Canister Filter Filtration Pouch, Size 6

Lee's Aquarium & Pets Under Gravel Filters Carbon Cartridges, 2 count

Aqueon Replacement Betta Filter Cartridge, 2 count

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

Eheim 2215 Canister Carbon Filter Pads, 3 count

Tetra Whisper Aquarium Power Filter, 5-10 gal

Marineland Magnum Polishing Internal Canister Filter Floss Sleeve, 3 count

Penn-Plax Cascade Aquarium Filt-A-Pack, Medium

API Water Softener Pillow, Size 5

Koller Products KC05 Aquarium Replacement Filter Cartridges, 6 count

API Nitra-Zorb Aquarium Canister Filter Filtration Pouch, Size 6

API Filstar XP Super Micro Filtration Aquarium Canister Filter Filtration Pads, 2 count

Lee's Aquarium & Pets Round Under Gravel Aquarium Bowl Filter, Small

SunGrow Activated Carbon Charcoal Pellets Aquarium Filtration, Cat Litter Box & Water Fountain ...

API Bio-Chem Zorb Filter Media Pouch for Crystal Clear Aquarium Water, Size 6, 18 count

Eheim Ehfifix Mechanical Filter Media, 5-L

Penn-Plax Cascade Aquarium Bio-Sponge 1200 & 1500 Filter, Medium

Penn-Plax 3 Pack Canistar Hang-on Filter Replacement Cartridge

Eheim Pro 4+ 250 Aquarium Canister Filter

Marineland Magniflow 160 Canister Filter

Penn-Plax Cascade Canistar Hang-On Aquarium Filter, Large, Black

Eheim 2213 Canister Fine Filter Pads, 3 count

Eheim 2213 Canister Coarse Filter Pads, 2 count

AquaReady Complete RO System Filter

API Super Activated Carbon Aquarium Canister Filter Filtration Pouch, Size 6

Eheim Classic 2217 Carbon Fine Filter Pads, 3 pack

Penn-Plax Cascade Bio-Sponge 500 Aquarium Filter, Medium

Fluval Nano Bio-Foam Filter Media

Eheim Aquarium Prefilter

Eheim Classic 2262 Aquarium Filter, 500-gal

AquaReady 5 Micron RO System Replacement Sediment Filter, White

Eheim 2211 Canister Fine Filter Pads, 3 count

Eheim MECHpro Mechanical Pre-Filter Media, 1-L

Eheim Skim350 Coarse Foam Cartridges, 2 count

Eheim 2213 Canister Carbon Filter Pads, 3 count

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