Daisy
Last Updated: Jan 22, 2026
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| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
REPLACEMENT CARBON FILTER Keeps aquarium water crystal clear – removes odors and discoloration
CATCHES DEBRIS Dense dual-sided mesh filters debris and fish waste
CONVENIENT Replacement filter cartridges are fully assembled and ready to use
USAGE Change every 2 weeks or sooner if there is reduced water flow
Age Range Description: All Life Stages
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Monster Pets | 9.97 | ✅ | ✅ | ✅ |
🐟 25% MORE ACTIVATED CARBON - Aqueon Replacement Filter Cartridges are dual-sided, featuring dense-floss with over 25% more activated carbon than the leading brands.
🐟 HIGH-QUALITY ACTIVATED CARBON - The cartridge contains high-quality activated carbon that keeps water clean.
🐟 EVEN CARBON DISTRIBUTION - Aqueon’s patented cartridges were designed to ensure the even distribution of activated carbon.
🐟 EASY INSTALLATION - Simply rinse under cold water and easily install using the "FRONT" orientation tab.
🐟 MULTIPLE SIZES AVAILABLE - Aqueon Replacement Cartridges are available in X-Small, Small, Medium, and Large.
🐟 OPTIMAL PERFORMACE - For optimal performance, change approximately every 4 weeks.
🐟 VERSATILE - Fits Aqueon QuietFlow Filter: E Internal Power Filter Size 10 and MiniBow Aquarium Filters Size 1, 2.5 and 5.
🐟 TRUSTED - Developed by true aquatic hobbyists, Aqueon provides a broad array of aquarium solutions to help maintain healthy, life-sustaining aquatic environments. From inception, Aqueon had one goal in mind: “Doing what is best for the health and well-being of fish and aquatic life.”
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Pre-cut for easy installation
For optimal performance, rinse first and replace approximately every 2 to 3 weeks
4 Count
Ammonia Reducing Pads help to remove excess harmful or toxic ammonia while trapping excess waste, food and other organic debris
Fits Aqueon QuietFlow LED PRO Aquarium Power Filter 10
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Monster Pets | 9.97 | ✅ | ✅ | ✅ |
Chemical filter media designed specifically for the Fluval Flex/Spec/Evo aquarium filters
Effective at removing and reducing nitrite
Helps prevent fish loss and supports beneficial bacteria for a healthier aquatic environment
For best results, replace monthly or as required after testing water with your Fluval test kit (sold separately)
Includes 4 Nitrite Remover inserts for use in freshwater and saltwater aquariums
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
REPLACEMENT FILTER CARTRIDGE: Pack of 6 fits Marineland Penguin PRO Power Filters 275 and 375; also fits original Penguin Power Filters 200 and 350.
EASY TO INSTALL: Pre-assembled cartridges slide easily into place, providing mechanical and chemical filtration and making replacement fast, dry and effortless.
THREE-STAGE FILTRATION: Mechanically filters water through a pad of double-thick poly fiber.
Chemically filtered through Black Diamond Premium Activated Carbon.
BIO-Wheel technology delivers wet/dry biological filtration for nitrifying bacteria growth.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
FILTER: The Tidal Foam Filter Sponge acts as a mechanical filter, trapping detritus and other large particles within your tank or aquarium.
ENVIRONMENT: The Tidal Foam Filter Sponge is fundamental to maintaining a healthy environment, removing solid or undissolved particles from floating throughout the water.
SCREENING: The screening effect of the Tidal Foam Filter Sponge removes particles in the water simply because they are too big to pass through the pores of the filter.
DEPTH: The depth effect of the Tidal Foam Filter removes or traps particles that are smaller than the pores of the filter itself by effectively forcing them through the filter’s cavities.
EFFICIENT: Use of the Tidal Foam Filter Sponge within your tank or aquarium’s filtration system will help to extend the life of chemical filtration media. The Tidal Foam Filter Sponge is a compatible replacement filter sponge with the Tidal 75 fish tank filters.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Fluval Foam Filter Block provides effective mechanical filtration by trapping large particles and debris
Biological activity will eventually occur in pore structure
Filter media helps create crystal clear, sparkling aquarium water for healthier aquarium environment
Replacement media for the Fluval 404, 405, 406 and 407 Aquarium Filters
Includes two Fluval Foam Filter Blocks
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Petco | 9.92 | ❌ | ❌ | ❌ |
Filter Compatibility: Compatible with Fluval Filter Series 106, 206, 306, 406, FX5, FX6, 105, 205, 305, 405, 104, 204, 304, and 404.
Water Clarification: BioMax is a premium-grade biological filter media that provides superior filtration and helps reduce and control ammonia and nitrate levels for a healthy nitrogen level in the water.
Ideal Environment: BioMax helps create crystal clear water, making ideal conditions for fish and plants in your tank. The complex porous design ensures optimal contact time as water passes through.
Versatile: This filter media is suitable for freshwater and saltwater aquariums. Replace monthly for best results. Please note, replenish only half the filter media at one time to allow proper seeding.
Additional Features: Will not affect water characteristics.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Mechanical filter media effectively traps micro particles and debris
Durable, extra thick, micro-fine polyester pads
Provides crystal clear aquarium water
Suitable for freshwater or saltwater aquariums
Includes 3 water polishing pads
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Made in United States
Package Dimensions : 3.75 L x 8.0 H x 3.75 W (inches)
Package Weight : 2.0 pounds
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Filter Compatibility: Compatible with AquaClear 70 Power Filter.
Water Clarification: Premium, research grade, low-ash carbon is porous and provides large amounts of surface area for absorption of impurities.
Ideal Environment: Carbon filter media improves water clarity and color, while also removing odors. Please note to remove when medication is being administered in aquarium water and use carefully when keeping live plants.
Versatile: This filter media is suitable for freshwater and saltwater aquariums up to 70 gallons. For best results, replace every 4 weeks.
Pack Includes: Includes 3 AquaClear Activated Carbon filter inserts.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ❌ | ❌ | ❌ |
Bio-Wheel technology delivers a three stage mechanical, chemical, and biological aquarium filtration
Certified flow rate of 75 GPH (gallons per hour), perfect for aquariums up to 10 gallons
The penguin power filter requires virtually no set-up, making it perfect for any fish lover
Convenient penguin rite size "a" cartridge comes ready to use with each filter
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Monster Pets | 9.97 | ✅ | ✅ | ✅ |
3 Pack Of Aqueon Cartridge Ammonia Minipad Quiet Flow 20/75
Pre-cut for easy installation in your filter.
Helps to remove excess harmful or toxic ammonia.
For optimal performance, replace approximately every 2 to 3 weeks.
For use with size 20/75 Aqueon QuietFlow LED PRO Aquarium Power Filters.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Filter Compatibility: Compatible with AquaClear 110 Power Filter.
Water Clarification: Premium, research grade, low-ash carbon is porous and provides large amounts of surface area for absorption of impurities.
Ideal Environment: Carbon filter media improves water clarity and color, while also removing odors. Please note to remove when medication is being administered in aquarium water and use carefully when keeping live plants.
Versatile: This filter media is suitable for freshwater and saltwater aquariums up to 110 gallons. For best results, replace every 4 weeks.
Pack Includes: Includes 1 AquaClear Activated Carbon filter insert.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Monster Pets | 9.97 | ✅ | ✅ | ✅ |
Biological filter media enhances the elimination of fish wastes
Large surface area provides optimal colonization of beneficial bacteria
Helps create crystal clear, sparkling aquarium water for healthier aquarium environment
Suitable for both freshwater and saltwater aquariums
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Replacement: Marina Slim Filter Bio-Carb is a genuine replacement cartridge for all three Marina Slim Filter Models (S10, S15, S20).
Ideal Usage: Ideal for tropical fish, the filter cartridge contains activated carbon and Ceramitek for optimum filtration and a healthy aquarium.
Helpful Filtration: The activated carbon effectively removes pollutants and odors from your aquarium water. Ceramitek, a highly porous ceramic biological filter medium, optimizes biological filtration.
Easy Installation: The easy-to-use disposable cartridge should be replaced every two weeks for the best results. Never replace all filter cartridges at the same time to ensure a constant presence of beneficial bacteria.
Multi-Pack: Includes 3 replacement filter cartridges.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Monster Pets | 9.97 | ✅ | ✅ | ✅ |
Fits Aqueon QuietFlow Filter: LED PRO Size 20 & up and E Internal 40 gallon
Ready-to-use cartridge contains high quality activated carbon that keeps water clean, rinse before replacing
Installs in seconds: align cartridge bottom key slot for an accurate fit inside the Filter
For optimal performance, change approximately every 4 to 6 weeks
Pack of 2
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Provides effective mechanical filtration
Fits perfectly inside the filter chamber to prevent debris from escaping
Ideal pore size allows efficient water flow, less clogging and long-lasting filtration
Suitable for freshwater, saltwater or reptile environments
Specially designed for use with the Fluval U4 Underwater Filter
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ninjasales71 | 5.15 | ✅ | ✅ | ✅ |
REPLACEMENT CARBON FILTER: Keeps aquarium water crystal clear, healthy and polished – activated carbon removes odors and discoloration.
CATCHES DEBRIS: Layers of multi-density floss effectively trap even the smallest particulates.
FOR TETRA WHISPER EX POWER FILTERS: Available in medium and large sizes to fit the range of Tetra Whisper EX Filters.
CONVENIENT: Replacement filter cartridges are fully assembled and ready to use.
USAGE: Change monthly or sooner if needed.
Age Range Description: All Ages
Included Components: Tetra Carbon Filters Large (2 Pack)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Aquatic Experts | 9.94 | ✅ | ✅ | ✅ |
2 LAYERS EQUALS CLEAR WATER: This unique 2 Layers in 1 filter media pad combines a typical aquarium filter pad with a water polishing pad. The top layer’s open fiber construction traps LARGER PARTICLES while the bottom layer's dense fiber network TRAPS FINER PARTICLES, working together to produce clean, clear water in your aquarium.
SEE THE DIFFERENCE: When you clean this aquarium fiber pad, see how much more debris it traps compared to other aquarium media pads. Your fish, turtles, and all aquatic pets will be happier and healthier.
CUT TO FIT: FilterFirst filter media aquarium pads can easily be cut to fit your filter. Our unique poly filter pad is PERFECT FOR FRESHWATER, REEF TANKS OR SALTWATER aquariums. Ideal filter pads for aquarium wet dry filters, and will also work in your sump, canister filter media, aquaponic system, and more. They’re also perfect as a turtle tank filter!
SAFE AND DURABLE: Our aquarium filter floss pad is constructed of durable polyester fibers making it strong and durable enough to be rinsed and reused several times before needing to be replaced. This tank filter material works great for indoor ponds or small outdoor ponds. For larger ponds use our Koi Pond filter media pads exclusively made for ponds and water gardens.
TIP: Place our FilterFirst dual action polyfilter pad in flowing water with the open filter floss weave side up to trap coarse and fine particles. Made without dyes in USA!
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Vector Aqua | 9.90 | ✅ | ✅ | ✅ |
Premium 2-in-1 chemical and mechanical filter media designed specifically for the Fluval 307/407 and 306/406 High Perfmorance Canister Filters
Effective at removing and controlling phosphate
Effectively traps floating particles for clear water (debris, excess food and waste)
For best results, replace monthly or as required after testing water with your Fluval test kit (sold separately)
Includes 6 Phosphate Remover pads for use in freshwater and saltwater aquariums
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| LH Direct | 6.08 | ✅ | ✅ | ✅ |
Coconut shell activated carbon to help absorb undesirable odors, pigments and chlorine
Intended For: Top fin desktop aquariums with small filters
6 MONTH SUPPLY
Product Dimensions: 8.1 in L x 1.9 in W (20.5 x 4.8 cm)
Color: White
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Replacement Motor Seal Ring Gasket for Fluval 304, 305, 306 / 404, 405, 406 Canister Filters
Fluval replacement part A-20063
Rubber seal will perish over time, yearly replacement recommended
Wet seal ring with water before replacing, do NOT use petroleum jelly based products
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Monster Pets | 9.97 | ✅ | ✅ | ✅ |
Provide even distribution of carbon throughout; 25 percent more activated carbon
Ready-to-use; install in seconds
Please note: this package includes (2) bags of (6) filter cartridges
Fits Mini Bow 1, Mini Bow 2. 5 and Mini Bow 5
Replacement filter cartridge for Aqueon Mini Bow aquariums
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
CASCADE 1200 & 1500 REPLACEMENT PADS: This 6-Pack of Cascade Bio-Floss Poly Fiber Floss Pads is specially designed for Cascade 1200 & 1500 Canister Filters, allowing for simple and easy media replenishment. Don’t worry about cutting to size, these pads fit directly into media trays within these Cascade Canister Filters.
ESSENTIAL MECHANICAL FILTRATION: Bio-Floss helps clear up discolorations and reduce foul odors by physically trapping tiny particles of detritus, such as fish waste, uneaten food, or even decayed aquarium plant materials. This assists with establishing and maintaining healthy, crystal-clear water within your tank.
BENEFICIALLY CONVENIENT: Along with being a vehicle for mechanical filtration, Bio-Floss also promotes the colonization of beneficial filtration. This in return, helps regulate ammonia, nitrite, nitrate, and phosphate levels. Great for freshwater and saltwater aquariums.
PROFICIENT & PROLONGING: Our Poly Fiber Floss Pads help prevent the clogging of finer filter media, allowing for them to perform better at their own tasks, which improves overall filtration. On the other hand, Bio-Floss extends the lifespan of other media and the filter itself.
SHOP PENN-PLAX FOR ALL YOUR PET’S NEEDS: Penn-Plax is a manufacturer and distributor of top quality pet supplies, who specialize in creating excellent pet products for animals, both great and small.
Age range description: All Life Stages
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| CLL Pet Supplies | 9.85 | ✅ | ✅ | ✅ |
Sponge filter provide both mechanical and bio filtration, also, the air infusion chamber produces minute bubbles which increase the oxygen solubility
Safe for fish: soft sponge material, traps floating debris and won't suck up your fish
Easy to set up & clean: simply install an airline into the unit and turn on the air pump, simply rinse and squeeze sponge in tank water
Recommend tank size: up to 60 gallon, excellent for small size fish like betta, dwarf cichlid, guppy, killifish etc., or for hatcheries, maternity tanks, nano tanks and fry tanks, as the filter produces minimal current and has almost no way to suck the fish through the filter
Includes: 1 PC of Sponge Filter. Dimension: 4.5"D X 8.0"H
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| CLL Pet Supplies | 9.85 | ✅ | ✅ | ✅ |
Extremely porous ceramic media for efficient filtration.
Hollow design effectively distributes water flow and offer more surface area for filtration capacity.
Great for both fresh and saltwater aquariums
Free media bag for easy handling. The zipper-design media bag is reusable.
Size of ceramic ring: 11/16" x 5/8". Size of filter media bag: 8 " x 5.5 ".
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| CLL Pet Supplies | 9.85 | ❌ | ❌ | ❌ |
Generic pads for SUNSUN Canister filters HW-304B/404B/704B, HW-3000, Polar Aurora 525gph
4 pcs of sponge bio filter pads (1xCoarse, 2xMedium, 1xFine): trap most visible debris particles without restricting water flow. (Reusable after rinsed)
12 pcs of white floss pads: Filter out fine particles providing crystal clear water
Extend the lifespan of your other filter media
Includes: 1xcoarse (Blue), 2x medium (Green), 1xfine (Black) + 12 floss filter pads (White)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Chemical filter media with two unique filtering sides that combine to provide thorough chemical filtration
Polyester side filters out fine debris and contaminants
Carbon side filters out harmful liquid substances, colorants and odors
Suitable for freshwater, saltwater or reptile environments
Includes two cartridges designed for use with the Fluvial U2 Underwater Filter
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Amazon.com | 9.68 | ✅ | ✅ | ✅ |
Keeps unwanted waste from harming your fish
Rids your tank of debris and also makes use of beneficial bacteria in your aquarium
Includes one foam block and one bag of BioMax, 2.1 ounces
Replace every 2 to 3 months
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| Fluval | 51 |
| Aquaneat | 40 |
| Seachem | 36 |
| Penn-Plax | 34 |
| Aquatic Experts | 23 |
| Aqueon | 19 |
| Alegi | 18 |
| Lee's | 16 |
| Pawfly | 14 |
| Tetra | 14 |
We've carried out a comprehensive analysis of 833,453 reviews on aquarium filters, using our selection criteria to identify the best options in the fish & aquatic pets. Our findings reveal that most customers typically select aquarium filters priced around $21.16, with top brands including aqueon, tetra, marineland, hitauing, datoo, hygger, aqqa, aquamiracle and aquaclear and aqua-tech
Our team of expert editors reviewed these high-quality items and handpicked the top 30 aquarium filters for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the fish & aquatic pets category. These include monster pets, amazon.com, luys, winnerdirect, usmagob, aqqa, tenyon, big bob's electronics and pattern professional and amosijoy .
We are dedicated to assisting our users in finding the right accessories Products based on their needs, saving them considerable time when choosing which aquarium filters to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.