Best Aquarium Filter Media 2026: According to Reviews | Chewy

Best Aquarium Filter Media

Filter media determines how effectively waste and debris are removed from aquarium water. Mechanical, biological, and chemical components each play a different role in maintaining clarity and stability. The best aquarium filter media options are durable, compatible with your system, and easy to replace or rinse as needed. Efficient media helps sustain water quality between maintenance cycles. Below, you'll find today's best-selling and top-rated aquarium filter medias that Chewy pet parents, like you, love. We update this list every week, so you can be sure you're getting the timeliest product recommendations available.

Our Top Picks

How we created this aquarium filter medium list

We leveraged input from our veterinarians and artificial intelligence to identify key considerations to help you find the best aquarium filter medium.
We scanned thousands of customer reviews and ratings and scored each product based on its performance against each of the key considerations. We then considered how popular a product is with Chewy customers and combined that with its key consideration scores to create the list of the best aquarium filter media.

Key aquarium filter medium considerations

Compatibility

Durability

Ease of Maintenance

Filtration Efficiency

1
Marineland Black Diamond Activated Carbon Filter Media, 22-oz jar
Marineland Black Diamond Activated Carbon Filter Media, 22-oz jar
Marineland Black Diamond Activated Carbon Filter Media, 22-oz jar
Marineland Black Diamond Activated Carbon Filter Media, 22-oz jar
Marineland Black Diamond Activated Carbon Filter Media, 22-oz jar
Marineland Black Diamond Activated Carbon Filter Media, 22-oz jar

Marineland Black Diamond Activated Carbon Filter Media, 22-oz jar

Rated 4.8 out of 5 stars
261
$9.99 Chewy Price
($0.46/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Compatibility

4.7/5
Excellent

Durability

4.6/5
Excellent

Ease of Maintenance

4.7/5
Excellent

Filtration Efficiency

4.6/5
Excellent

Is this aquarium filter medium right for my pet?

Aquarium Type

Freshwater, Saltwater

Fish Type

Tropical Freshwater, Marine Fish
2
Tetra Large Aquarium Carbon Filter, 4 count
Tetra Large Aquarium Carbon Filter, 4 count
Tetra Large Aquarium Carbon Filter, 4 count
Tetra Large Aquarium Carbon Filter, 4 count
Tetra Large Aquarium Carbon Filter, 4 count
Tetra Large Aquarium Carbon Filter, 4 count
Tetra Large Aquarium Carbon Filter, 4 count

Tetra Large Aquarium Carbon Filter, 4 count

Rated 4.8 out of 5 stars
169
$10.77 Chewy Price
($2.70/ea)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Compatibility

4.6/5
Excellent

Durability

4.6/5
Excellent

Ease of Maintenance

4.7/5
Excellent

Filtration Efficiency

4.7/5
Excellent

Is this aquarium filter medium right for my pet?

Material

Foam

Fish Type

Tropical Freshwater, Marine Fish
3
AquaClear 50 Active Carbon Insert, 3 count
AquaClear 50 Active Carbon Insert, 3 count
AquaClear 50 Active Carbon Insert, 3 count
AquaClear 50 Active Carbon Insert, 3 count

AquaClear 50 Active Carbon Insert, 3 count

Rated 4.8 out of 5 stars
106
$7.98 Chewy Price
($2.66/ea)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Compatibility

4.5/5
Great

Durability

4.5/5
Great

Ease of Maintenance

4.6/5
Excellent

Filtration Efficiency

4.8/5
Excellent

Is this aquarium filter medium right for my pet?

Material

Mesh, Synthetic Fabric

Aquarium Type

Saltwater, Freshwater

Fish Type

Tropical Freshwater, Marine Fish
4
Underwater Treasures Seapora Filter Floss, 20-sq ft
Underwater Treasures Seapora Filter Floss, 20-sq ft

Underwater Treasures Seapora Filter Floss, 20-sq ft

Rated 4.8 out of 5 stars
60
$15.99 Chewy Price
($15.99/ea)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Compatibility

4.3/5
Great

Durability

4.5/5
Great

Ease of Maintenance

4.5/5
Great

Filtration Efficiency

4.3/5
Great

Is this aquarium filter medium right for my pet?

Aquarium Type

Freshwater

Fish Type

Tropical Freshwater, Marine Fish
5
Fluval Carbon for AC20/AC30 Aquarium Power Filter, 3 count
Fluval Carbon for AC20/AC30 Aquarium Power Filter, 3 count
Fluval Carbon for AC20/AC30 Aquarium Power Filter, 3 count
Fluval Carbon for AC20/AC30 Aquarium Power Filter, 3 count

Fluval Carbon for AC20/AC30 Aquarium Power Filter, 3 count

Rated 4.9 out of 5 stars
28
$5.99 Chewy Price
($2.00/ea)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Compatibility

4.9/5
Excellent

Durability

4.9/5
Excellent

Ease of Maintenance

4.7/5
Excellent

Filtration Efficiency

4.7/5
Excellent

Is this aquarium filter medium right for my pet?

Aquarium Type

Freshwater
6
Aqueon QuietFlow 10 Ammonia Reducing Specialty Filter Pad, 4 count
Aqueon QuietFlow 10 Ammonia Reducing Specialty Filter Pad, 4 count
Aqueon QuietFlow 10 Ammonia Reducing Specialty Filter Pad, 4 count
Aqueon QuietFlow 10 Ammonia Reducing Specialty Filter Pad, 4 count
Aqueon QuietFlow 10 Ammonia Reducing Specialty Filter Pad, 4 count
Aqueon QuietFlow 10 Ammonia Reducing Specialty Filter Pad, 4 count
Aqueon QuietFlow 10 Ammonia Reducing Specialty Filter Pad, 4 count
Aqueon QuietFlow 10 Ammonia Reducing Specialty Filter Pad, 4 count
Aqueon QuietFlow 10 Ammonia Reducing Specialty Filter Pad, 4 count

Aqueon QuietFlow 10 Ammonia Reducing Specialty Filter Pad, 4 count

Rated 4.8 out of 5 stars
135
$8.95 Chewy Price
($2.24/ea)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Compatibility

4.7/5
Excellent

Durability

4.7/5
Excellent

Ease of Maintenance

4.6/5
Excellent

Filtration Efficiency

4.7/5
Excellent

Is this aquarium filter medium right for my pet?

Material

Mesh, Synthetic Fabric

Aquarium Type

Freshwater

Fish Type

Goldfish
7
Boyd Chemi-pure Blue Ultimate Filter Media, 11-oz jar, Bulk 6-pack

Boyd Chemi-pure Blue Ultimate Filter Media, 11-oz jar, Bulk 6-pack

Rated 4.8 out of 5 stars
54
$108.31 Chewy Price
($1.65/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Compatibility

4.6/5
Excellent

Durability

4.6/5
Excellent

Ease of Maintenance

4.7/5
Excellent

Filtration Efficiency

4.7/5
Excellent

Is this aquarium filter medium right for my pet?

Material

Nylon, Synthetic Fabric

Aquarium Type

Freshwater, Saltwater

Fish Type

Tropical Freshwater
8
SunGrow Betta Aquarium & Koi Pond Polishing Filter Floss Media Pad for Fish Tank Cartridge, 12 x 72-in
SunGrow Betta Aquarium & Koi Pond Polishing Filter Floss Media Pad for Fish Tank Cartridge, 12 x 72-in
SunGrow Betta Aquarium & Koi Pond Polishing Filter Floss Media Pad for Fish Tank Cartridge, 12 x 72-in
SunGrow Betta Aquarium & Koi Pond Polishing Filter Floss Media Pad for Fish Tank Cartridge, 12 x 72-in
SunGrow Betta Aquarium & Koi Pond Polishing Filter Floss Media Pad for Fish Tank Cartridge, 12 x 72-in
SunGrow Betta Aquarium & Koi Pond Polishing Filter Floss Media Pad for Fish Tank Cartridge, 12 x 72-in

SunGrow Betta Aquarium & Koi Pond Polishing Filter Floss Media Pad for Fish Tank Cartridge, 12 x 72-in

Rated 4.7 out of 5 stars
37
$9.91 Chewy Price
($9.91/ea)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Compatibility

3.7/5
Good

Durability

4.3/5
Great

Ease of Maintenance

4.4/5
Great

Filtration Efficiency

4.6/5
Excellent

Is this aquarium filter medium right for my pet?

Material

Cotton

Aquarium Type

Freshwater, Saltwater

Fish Type

Koi & Pond Fish, Tropical Freshwater, Cichlid, Marine Invertebrate...
9
Fluval Bio-Foam for AC20 Aquarium Power Filter, 3 count
Fluval Bio-Foam for AC20 Aquarium Power Filter, 3 count

Fluval Bio-Foam for AC20 Aquarium Power Filter, 3 count

Rated 4.9 out of 5 stars
20
$5.27 Chewy Price
($1.76/ea)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Compatibility

4.8/5
Excellent

Durability

4.7/5
Excellent

Ease of Maintenance

4.7/5
Excellent

Filtration Efficiency

4.8/5
Excellent

Is this aquarium filter medium right for my pet?

Aquarium Type

Freshwater
10
Marineland White Diamond Ammonia Neutralizing Crystals Filter Media, 50-oz jar
Marineland White Diamond Ammonia Neutralizing Crystals Filter Media, 50-oz jar
Marineland White Diamond Ammonia Neutralizing Crystals Filter Media, 50-oz jar

Marineland White Diamond Ammonia Neutralizing Crystals Filter Media, 50-oz jar

Rated 4.7 out of 5 stars
109
$3.03 Chewy Price
($0.07/oz)
Promo, New Customers Only: Spend $49+, get $20 eGift Card

Our ratings

Compatibility

4.2/5
Great

Durability

4.3/5
Great

Ease of Maintenance

4.4/5
Great

Filtration Efficiency

4.3/5
Great

Is this aquarium filter medium right for my pet?

Aquarium Type

Pond, Freshwater

Fish Type

Tropical Freshwater