Do saltwater fish tanks need filters?

Yes, filters are crucial in saltwater aquariums to maintain water quality by removing waste, toxins, and excess nutrients. They also promote oxygen exchange and water circulation, which are vital for healthy marine life.

What type of filter is best for a saltwater fish tank?

The best filter depends on your tank size and setup. Canister filters, sump systems, and protein skimmers are popular for saltwater tanks. A combination of mechanical, chemical, and biological filtration is ideal.

How long do saltwater fish tank filters last?

While the filter unit itself can last several years with proper care, the media inside should be replaced regularly — typically every 2–6 weeks depending on the media type and tank load.

What size filter do I need for my saltwater tank?

Choose a filter rated for your aquarium's gallon size, ideally one that turns over the water volume 3–5 times per hour. Oversized filters are often a safer bet to ensure adequate filtration in marine setups.

Saltwater Fish Tank Filters - Page 2 (Free Shipping)

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AquaReady Nano In Sump Protein Skimmer, 30 to 65-gal

$199.99 Chewy Price

$239.99 List Price

Autoship Price

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

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Fluval AC110 Aquarium Power Filter, 60 to 110-gal slide 2 of 6

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Fluval AC110 Aquarium Power Filter, 60 to 110-gal

Rated 4.6 out of 5 stars

24

$97.99 Chewy Price

$107.79 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
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Tetra Whisper Aquarium Power Filter, 30-60 gal slide 2 of 5

Tetra Whisper Aquarium Power Filter, 30-60 gal slide 3 of 5

Tetra Whisper Aquarium Power Filter, 30-60 gal slide 4 of 5

Tetra Whisper Aquarium Power Filter, 30-60 gal slide 5 of 5

Tetra Whisper Aquarium Power Filter, 30-60 gal

Rated 3.8 out of 5 stars

182

$41.35 Chewy Price

$60.39 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
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Marineland Bio Wheel Assembly Fish Aquarium Filter

Rated 4.1 out of 5 stars

146

$9.29 Chewy Price

$13.39 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

Fluval AC20 Aquarium Power Filter, 5 to 20-gal

Rated 4.5 out of 5 stars

42

$35.99 Chewy Price

$39.59 List Price

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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

Jebao SCP-150 Fish Aquarium Pump

Rated 4 out of 5 stars

1

$147.99 Chewy Price

$149.99 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
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

TMC Optical Auto Top Up Aquarium Pump

Rated 1 out of 5 stars

1

$99.99 Chewy Price

$109.99 List Price

Autoship Price

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

Aquaillumination Axis 20 Aquarium Pump, Up to 15-gal

Rated 3 out of 5 stars

2

$99.99 Chewy Price

$119.99 List Price

Autoship Price

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

Fluval Aquarium Underwater Filter, 24-40 gal

Rated 3.9 out of 5 stars

169

$54.99 Chewy Price

($54.99/ea) Price per Unit

$79.99 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

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

Pro Clear Aquatic Systems Redflex Reef Sump 100, Red & White, 23.5 x 10 x 16-in

$410.99 Chewy Price

$473.10 List Price

Autoship Price

Free 1-3 day delivery on first-time orders
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

Marina Aquarium Power Filter, 10-gal

Rated 4.3 out of 5 stars

150

$27.91 Chewy Price

($27.91/ea) Price per Unit

$37.99 List Price

Autoship Price

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

Jebao SCP-90 Fish Aquarium Pump

Rated 4.5 out of 5 stars

2

$103.99 Chewy Price

$129.99 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

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

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

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

TMC Reef Skim 2.0 750 DC Aquarium Protein Skimmer

$289.99 Chewy Price

$319.99 List Price

Autoship Price

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

Aquaillumination Orbit 2 Aquarium Pump, Black, +20-gal

$279.00 Chewy Price

$359.99 List Price

Autoship Price

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

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

TMC Reef Pump Compact 1500 DC Aquarium Pump

$114.99 Chewy Price

Autoship Price

Free 1-3 day delivery on first-time orders
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

Pro Clear Aquatic Systems Redflex 4 In 1 Sump 100, Red & White, 16 x 16 x 16-in

$460.99 Chewy Price

$530.02 List Price

Autoship Price

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

AquaReady NF-1 Internal Nano Protein Skimmer, 20 to 30-gal

Rated 5 out of 5 stars

2

$134.99 Chewy Price

$161.99 List Price

Autoship Price

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

JBJ Aquarium Ocean Stream OS-1K Aquarium Circulation Pump Kit, 2X1600 GPH

Rated 2 out of 5 stars

2

$129.00 Chewy Price

($64.50/ea) Price per Unit

Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 12 and Apr 16

Jebao SLW-30 Fish Aquarium Wavemaker

Rated 3.7 out of 5 stars

6

$85.99 Chewy Price

$109.99 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

Lifegard HOF-40 Quadruple Slim Design Hang-On-Filter, 40-gal

Rated 1 out of 5 stars

1

$36.32 Chewy Price

Autoship Price

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

SunSun HW-602B Aquarium Canister Filter, 20-gal

Rated 3.5 out of 5 stars

21

$50.29 Chewy Price

($2.52/gl) Price per Unit

Autoship Price

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

AquaClear Powerhead Water Pump, Size 20

Rated 4.4 out of 5 stars

59

$42.52 Chewy Price

$53.99 List Price

Autoship Price

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

Fluval Sea SP4 Sump Fish Pump

Rated 4.7 out of 5 stars

3

$143.99 Chewy Price

$249.99 List Price

Autoship Price

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

Saltwater Fish Tank Filters

AquaReady Nano In Sump Protein Skimmer, 30 to 65-gal

Fluval AC110 Aquarium Power Filter, 60 to 110-gal

Tetra Whisper Aquarium Power Filter, 30-60 gal

Marineland Bio Wheel Assembly Fish Aquarium Filter

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

Fluval AC20 Aquarium Power Filter, 5 to 20-gal

OASE Indoor Aquatics Biocompact 25 Internal Fish Filter

Jebao SCP-150 Fish Aquarium Pump

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

TMC Optical Auto Top Up Aquarium Pump

Aquaillumination Axis 20 Aquarium Pump, Up to 15-gal

Fluval Aquarium Underwater Filter, 24-40 gal

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

Tetra Whisper Aquarium Internal Filter, Black, 4-gal

Pro Clear Aquatic Systems Redflex Reef Sump 100, Red & White, 23.5 x 10 x 16-in

Aqueon Submersible Internal Aquarium Filter, 40-gal

Marina Aquarium Power Filter, 10-gal

Jebao SCP-90 Fish Aquarium Pump

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

Aqueon QuietFlow 20/75 Phosphate Remover Specialty Aquarium Filter Pad

AquaZen Nano Internal Corner Filter

OASE Indoor Aquatics Filtosmart 60 External Fish Filter

TMC Reef Skim 2.0 750 DC Aquarium Protein Skimmer

Aquaillumination Orbit 2 Aquarium Pump, Black, +20-gal

Fluval Aquarium Power Filter, 70-gal

TMC Reef Pump Compact 1500 DC Aquarium Pump

Eheim Pro 4+ 350 Aquarium Canister Filter

Pro Clear Aquatic Systems Redflex 4 In 1 Sump 100, Red & White, 16 x 16 x 16-in

AquaReady NF-1 Internal Nano Protein Skimmer, 20 to 30-gal

JBJ Aquarium Ocean Stream OS-1K Aquarium Circulation Pump Kit, 2X1600 GPH

Jebao SLW-30 Fish Aquarium Wavemaker

Marineland Magnum Polishing Internal Filter, 97-gal

Lifegard HOF-40 Quadruple Slim Design Hang-On-Filter, 40-gal

SunSun HW-602B Aquarium Canister Filter, 20-gal

AquaClear Powerhead Water Pump, Size 20

Fluval Sea SP4 Sump Fish Pump

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