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Best AQUARIUM FILTER CARTRIDGES

At Aquarium Accessories Reviews, we take pride in our rigorous review process. Each product is handpicked based on market research, personally tested by our experienced team for functionality and durability, and evaluated for value for money. Alongside our hands-on experience, we also consider real user feedback. This meticulous approach ensures we provide honest, transparent, and comprehensive reviews to guide your aquarium accessory purchases.

We will continue to update this buyer's guide once a month or two.

The best AQUARIUM FILTER CARTRIDGES in 2024 - Detailed Product Descriptions

1. Tetra 25870 Impeller Whisper Power filter, 60-Gallon - 75069200

By Tetra Store

Tetra 25870 Impeller Whisper Power filter, 60-Gallon - 75069200

This impeller may be white or blue in color, they are the same item just a different color
This is the replacement magnetic impeller for the whisper 3, 4, 60, triad 3000 filters
Tetra provides quality food and equipment products for all your pond needs

2. Lee's Pet Products ALE13052 2-Pack Undergravel Elbow for Aquarium Filter, 1-Inch

By Brand: Lee's Pet Products

Lee's Pet Products ALE13052 2-Pack Undergravel Elbow for Aquarium Filter, 1-Inch

Lees under gravel elbow 1-inch 2pack
Replacement parts and additions for existing filter system
Fish saver elbows will fit any 1 uplift tube

3. Fluval Carbon Filter Media for Aquariums, Premium Bituminous Carbon Inserts, 100-gram Nylon Bags, 3-Pack, A1440

By Fluval Store

Fluval Carbon Filter Media for Aquariums, Premium Bituminous Carbon Inserts, 100-gram Nylon Bags, 3-Pack, A1440

Filter Compatibility: Compatible with Fluval filter models: 106, 206, 306, 406, FX5, 105, 205, 305, 405, 104, 204, 304, and 404.
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. Ideal for use with most canister filters; for best results, replace every 4 weeks.
Pack Includes: Each pack includes three 100-gram nylon bags.

4. Lifegard Aquatics ARP172006 Micron Cartridge for Aquarium Filter, 9.75-Inch

By Brand: Lifegard Aquatics

Lifegard Aquatics ARP172006 Micron Cartridge for Aquarium Filter, 9.75-Inch

Lifegard aquatics micron cartridge 9.75-inch
Lifegard aquatics replacement cartridge for mechanical filter modules lifegard 100 micron screen cartridge
Presenting a complete line of proven quality items for the advanced aquarist

5. Tetra Whisper 40 Power Filter Replacement Tube Set, Includes Tubing And Impeller

By Tetra Store

Tetra Whisper 40 Power Filter Replacement Tube Set, Includes Tubing And Impeller

Tetra tube bag whisper 40
INCLUDES IMPELLER: Also includes replacement impeller.
USE FOR: Tetra Whisper 2, 20, 40 and 2000 Power Filters for aquariums.

6. Tetra ReptoFilter Cartridges - Medium 3 pack, green (25845)

By Tetra Store

Tetra ReptoFilter Cartridges - Medium 3 pack, green (25845)

EFFICIENT FILTRATION: Cleans and removes odors from water in turtle, newt and frog terrariums
DUAL-SIDED MESH: Catches debris and waste to keep water crystal clear
CONVENIENT: Disposable, fully assembled and ready to use
EASY TO REPLACE: Replacing cartridges is fast and easy – change every four weeks
SIZE: Medium size fits TetraFauna ReptoFilter 20 gallon, Viqaquarium and Decorative ReptoFilter
Age Range Description: No age range
Included Components: Tetra ReptoFilter Cartridges (3 Pack) Medium

7. Tetra 25993 Whisper 20 Bio Foam Grid Replacement Kit for Aquarium Filter

By Tetra Store

Tetra 25993 Whisper 20 Bio Foam Grid Replacement Kit for Aquarium Filter

Country Of Origin : China
Package Dimensions: 1.016 L x 13.462H x9.398W(centimeters)
Package Weight : 0.023 kilograms
Tetra bio foam grid whisper 20

8. Tetra 25997 Bio Foam Grid In Tank 20 Internal Filter

By Tetra Store

Tetra 25997 Bio Foam Grid In Tank 20 Internal Filter

Tetra bio foam grid in tank 20
Replacement filter foam for the whisper 20i internal filter
Great for mechanical and culturing biological filtration

9. Tetra 25992 Whisper 10 Bio Foam Grid Replacement Kit for Aquarium Filter

By Tetra Store

Tetra 25992 Whisper 10 Bio Foam Grid Replacement Kit for Aquarium Filter

Tetra bio foam grid whisper 10
Each whisper bio foam kit includes foam and a plastic frame
The bio-foam grid fits the whisper in-tank power filter

10. Tetra Whisper 60 Power Filter Replacement Tube Set, Includes Tubing And Impeller

By Tetra Store

Tetra Whisper 60 Power Filter Replacement Tube Set, Includes Tubing And Impeller

Tetra tube bag whisper 60
Complete set of replacement tubing for the tetra whisper 60 power filter
Also includes a replacement impeller

11. Fluval U2 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A490

By Fluval Store

Fluval U2 Poly-Carb Cartridge, Replacement Underwater Aquarium Filter Media, 2-Pack, A490

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

13. Lee's Pet Products ALE13202 Undergravel Fishbowl Filter, 2-Gallon

By Brand: Lee's Pet Products

Lee's Pet Products ALE13202 Undergravel Fishbowl Filter, 2-Gallon

Lees under gravel fishbowl filter 2galoon
Minimizes maintenance responsibility
Comes with plant and carbon cartridge included

14. Tetra 25996 Bio Foam Grid In Tank 10 Internal Filter

By Tetra Store

Tetra 25996 Bio Foam Grid In Tank 10 Internal Filter

Tetra bio foam grid in tank 10
Replacement filter foam for the whisper 10i internal filter
Great for mechanical and culturing biological filtration

15. Aquatic Experts Polishing Filter Pad - Superior Polishing Pad for Aquarium - Cut to Fit - Media for Fresh Water & Saltwater Fish Tanks and Terrariums(50 Micron, 24" x 36" - 1 Pack)

By Aquatic Experts Store

Aquatic Experts Polishing Filter Pad - Superior Polishing Pad for Aquarium - Cut to Fit - Media for Fresh Water & Saltwater Fish Tanks and Terrariums(50 Micron, 24

SPARKLING CLEAR WATER: Our 50 micron filter pad has a dense fiber network to effectively trap fine to extra fine particles floating in your aquarium water to produce sparkling clear water.
CLEARS TANK WATER FAST: Fine particles pass through most aquarium filter media. Our aquarium polishing filter pad quickly improves water clarity by trapping fine particles that pass through prefilter media. You will see visibly clearer water and your tank will be cleaner.
EASILY CUT TO FIT: This bulk felt filter pad can easily be cut to fit your filter. For best results place a prefilter media pad before the aquarium polishing filter pad. Our aquarium filter floss pad is ideal for freshwater aquariums, planted tanks, turtle tanks, reef tanks or saltwater aquariums.
UNIVERSAL AQUARIUM FILTER MEDIA: This polishing pad is constructed with woven polyester fibers making it strong and durable enough to even be cleaned in a washing machine. The pad’s consistent, reliable design gives superior filtration. Perfect pad for wet/dry filters, sumps, canister filters, HOB filters and much more.
TIPS: The larger the micron number the bigger the pore size. It is best to start with a larger micron rated pad then, as water clarity increases, use a lower number micron rated pad. This ensures your polishing pad will last longer before cleaning or replacing. These filter polishing pads are the perfect aquarium water clarifier.

16. Aqueon QuietFlow Coarse Foam Pads, Small, Pack of 2

By Aqueon Store

Aqueon QuietFlow Coarse Foam Pads, Small, Pack of 2

Provides biological and mechanical aquarium filtration
Replacement media for Aqueon QuietFlow Canister Filter 200
Traps large particles, debris and solid waste to give your fish crystal clear water
Improves overall appearance and water quality for fish and other aquatic livestock
Coarse foam provides surface area for beneficial bacteria to colonize for bio filtration

17. Marina Intake Strainer Sponge and Slim Filter Plus Ceramic Cartridge, 3-Pack Zeolite Filter for Aquariums

By Marina Store

Marina Intake Strainer Sponge and Slim Filter Plus Ceramic Cartridge, 3-Pack Zeolite Filter for Aquariums

Absorbs toxic ammonia and reduces fish stress
Contains Ceramitek, a highly porous ceramic biological filter medium
Effectively removes pollutants and odors
Compatible with Marina S10, S15 and S20 Slim Aquarium Filters
Bundle includes 3 Bio-Clear filter cartridges and 1 Intake Strainer Sponge

18. Aquaclear Activated Carbon Insert, 50-Gallon Aquariums, 3-Pack with Aquaclear 50-Gallon Biomax

By Brand: Aqua Clear

Aquaclear Activated Carbon Insert, 50-Gallon Aquariums, 3-Pack with Aquaclear 50-Gallon Biomax

Adsorbs odors, discoloration and impurities
Designed to fit the AquaClear 50 filter
Filter media designed for the AquaClear 50 Power Filter
Reduces ammonia and nitrate levels

19. Fluval U4 Filter Poly/Carbon Catridge (2 Pack) U Underwater BioMax Filter

By Fluval Store

Fluval U4 Filter Poly/Carbon Catridge (2 Pack) U Underwater BioMax Filter

Provides effective chemical filtration
Custom fit for the Fluval U4 Filter
Promotes growth of beneficial bacteria
Fits the Fluval U2, U3 and U4 Filters

20. AquaClear 70 Filter Media for Aquariums up to 70 Gallons, 3-Pack Activated Carbon Inserts and 3-Pack Foam Inserts, Replacement Filter Media

By Brand: AquaClear

AquaClear 70 Filter Media for Aquariums up to 70 Gallons, 3-Pack Activated Carbon Inserts and 3-Pack Foam Inserts, Replacement Filter Media

Activated Carbon absorbs odors, discoloration and impurities
Foam traps particles and debris; tailored fit prevents bypass
Replacement media designed to fit the AquaClear 70 filter
Suitable for both freshwater and saltwater aquariums up to 70 gallons
Includes one 3-pack of AquaClear 70 Activated Carbon Inserts and one 3-pack of AquaClear 70 Foam Filter Inserts

21. Fluval Aquarium Filter Media Replacement Bundle, 3-Pack ClearMax Phosphate Remover and Zeo-Carb

By Fluval Store

Fluval Aquarium Filter Media Replacement Bundle, 3-Pack ClearMax Phosphate Remover and Zeo-Carb

ClearMax Phosphate Remover, chemical filter media that absorbs phosphate, nitrite and nitrate
Zeo-Carb, a combination of Fluval Carbon and Fluval Ammonia Remover, helps protect the aquarium from toxic build-ups of ammonia
Zeo-Carb is chemical filter media eliminates water impurities, odors and discoloration
For freshwater aquarium use only
Includes one 3-pack of Fluval ClearMax Phosphate Remover and one 3-pack of Fluval Zeo-Carb

22. Fluval C2 Power Filter Replacement Media Bundle, 3-Pack Activated Carbon and 3-Pack Poly/Foam Pad, Filter Media for Aquariums up to 30 Gallons

By Fluval Store

Fluval C2 Power Filter Replacement Media Bundle, 3-Pack Activated Carbon and 3-Pack Poly/Foam Pad, Filter Media for Aquariums up to 30 Gallons

Activated Carbon, chemical filter media, improves water clarity by effectively eliminating odors, discoloration and impurities
Poly/Foam Pad effectively performs two stages of mechanical filtration; porous side captures large particles (stage 1), while dense polyester side traps finer debris (stage 2)
Replacement filter media designed for use with the Fluval C2 Power Filter
Suitable for both freshwater and saltwater aquariums up to 30 gallons
Includes one 3-pack Fluval Activated Carbon and one 3-pack Fluval Poly/Foam Pad

23. Marina Slim Filter Plus Ceramic Cartridge, Zeolite Filter and Carbon Filter Bundle, 6 Filters for Aquariums

By Marina Store

Marina Slim Filter Plus Ceramic Cartridge, Zeolite Filter and Carbon Filter Bundle, 6 Filters for Aquariums

Absorbs toxic ammonia and reduces fish stress
Contains Ceramitek, a highly porous ceramic biological filter medium
Effectively removes pollutants and odors
Compatible with Marina S10, S15 and S20 Slim Aquarium Filters
Bundle includes 3 Bio-Carb filter cartridges and 3 Bio-Clear filter cartridges

24. Fluval Edge Aquarium Filter Media Replacement Bundle, Carbon Clean & Clear Renewal Sachets and Foam & BioMax Renewal

By Fluval Store

Fluval Edge Aquarium Filter Media Replacement Bundle, Carbon Clean & Clear Renewal Sachets and Foam & BioMax Renewal

Carbon Clean & Clear Renewal Sachets contain premium grade carbon that helps eliminate toxic impurities, odors and discoloration
Foam and BioMax Renewal media combo pack includes a course foam pad to trap particles and debris, and BioMax rings that provide an ideal surface for beneficial bacteria to grow upon
Custom fit biological and chemical filter media for the Fluval Edge Aquarium Series
Suitable for both freshwater and saltwater aquariums up to 70 gallons
Includes one 3-pack of Fluval Edge Carbon Clean & Clear Renewal Sachets and one package of Fluval Edge Foam & BioMax Renewal

25. AquaClear 110 Filter Media for Aquariums up to 110 Gallons, 3-Pack Activated Carbon Inserts and 3-Pack Foam Inserts, Replacement Filter Media

By Brand: AquaClear

AquaClear 110 Filter Media for Aquariums up to 110 Gallons, 3-Pack Activated Carbon Inserts and 3-Pack Foam Inserts, Replacement Filter Media

Activated Carbon absorbs odors, discoloration and impurities
Foam traps particles and debris; tailored fit prevents bypass
Replacement media designed to fit the AquaClear 110 filter
Suitable for both freshwater and saltwater aquariums up to 110 gallons
Includes one 3-pack of AquaClear 110 Activated Carbon Inserts and one 3-pack of AquaClear 110 Foam Filter Inserts

26. Fluval U4 Filter Poly/Carbon Catridge (2 Pack) U4 Filter Foam Pad (2 Pack)

By Fluval Store

Fluval U4 Filter Poly/Carbon Catridge (2 Pack) U4 Filter Foam Pad (2 Pack)

Provides effective chemical filtration
Custom fit for the Fluval U4 Filter
Provides effective mechanical filtration
Custom fit for the Fluval U4 Filter

27. MarineLand PF0350B Penguin Power Filter, Upto 75 Gallons, 350 GPH & Refillable Media Cartridge

By MarineLand Store

MarineLand PF0350B Penguin Power Filter, Upto 75 Gallons, 350 GPH & Refillable Media Cartridge

WITH ROTATING BIO-WHEEL: Patented Bio-Wheel technology provides excellent wet/dry biological filtration.
MULTI-STAGE FILTRATION: Delivers mechanical, chemical and biological aquarium filtration to maintain a clean aquatic environment.
COMPATIBILITY: Use with Marineland Rite-Size Filter Cartridges (see individual filter for sizing recommendations).
FIVE SIZES: Available in 75 GPH, 100 GPH, 150 GPH, 200 GPH and 350 GPH sizes.
REFILLABLE MEDIA CARTRIDGE Add carbon or other media to provide chemical and mechanical filtration to keep aquariums clean
COMPATIBILITY Fits Marineland Penguin 200 and 350 Power Filters
USE Refill cartridge monthly with Marineland Diamond media
MARINELAND FILTRATION PRODUCTS Count on Marineland brand for the most reliable technically advanced aquariums and accessories on the market

28. Marina Aquarium S20 Power Filter and Media Bundle

By Marina Store

Marina Aquarium S20 Power Filter and Media Bundle

Power filter kit for aquariums up to 20 gallons
Self priming aquarium filter
Filter is easy to maintain and has adjustable flow control
Bio-Carb and Zeolite Plus Filter Catridge Media absorbs toxic ammonia and reduces fish stress
Media is sold in 3 packs; easy to replace

29. AQUANEAT Low Water Level Filter, Small Turtle Tank Filter, up to 3 Gal and 6 PCS Replacement Filter Cartridges Bundle

By AQUANEAT Store

AQUANEAT Low Water Level Filter, Small Turtle Tank Filter, up to 3 Gal and 6 PCS Replacement Filter Cartridges Bundle

Bundle Includes: 1 PC filter and 6 PCS replacement filter cartridges
Low Water Level Filter: To run smoothly, it only requires about 0.8 inch/2cm depth of water
Mechanical Filtration : Activated carbon cartridge with cotton mesh for mechanical filtration; removes odors and discoloration from water
Recommend Tank Size: Up to 3 Gallons terrarium; Max flow rate: 24GPH(90L/H)
Recommend Turtle Size: Perfect for baby turtles 1-2 inches in size and hermit crabs

30. Aqueon QuietFlow E Internal Power Filter, Extra Small, 3 Gallon Bundle

By Aqueon Store

Aqueon QuietFlow E Internal Power Filter, Extra Small, 3 Gallon Bundle

Efficiently cleans and filters water
Easy to install using suction cups and/or hanging clips
Fits Aqueon QuietFlow Fitler: E Internal Power Filter Size 3
Ready-to-use cartridge contains high quality activated carbon that keeps water clean, rinse before replacing

31. Kulife Aquarium Filters & Filter Replacement Cartridge – 3-Stage Aquarium Filter Internal Filter Fish Tank Filter Turtle Filter for 70-100 Gallon Fish Tanks with Dual Water Outlet and Aeration

By Brand: Kulife

Kulife Aquarium Filters & Filter Replacement Cartridge – 3-Stage Aquarium Filter Internal Filter Fish Tank Filter Turtle Filter for 70-100 Gallon Fish Tanks with Dual Water Outlet and Aeration

PERFORMANCE – Max. Flow 300GPH (1140L/H), Max lift 4.5ft (1.38m), Power 12W. For tank size of 70-100 gallons.REMINDER: Choose the right filter for your tank. A filter can’t cover tanks of big differences in capacity (as claimed by some products online)! Follow our recommendations for your tank.
3-STAGE FILTRATION – 3 sponge blocks – coarse sponge, carbonized sponge and fine sponge provide 3-stage filtration. COARSE SPONGE filters out large size impurities such as food residue, fish excrements, plant leaves etc.; CARBONIZED SPONGE removes odor, chlorine and fine particles; FINE SPONGE polishes water before it goes back to tank. PLUS the transparent box makes it easy to observe the filtering material when they get dirty. Search code "B09KXZXCQV" for the replacement sponges
These replacement sponges are used for Kulife aquarium filters 130GPH / 225GPH / 300GPH only. Do not use it for any other products
Filter Replacement Cartridge - Includes coarse sponge x2, carbonized sponge x4, fine sponge x2
The coarse sponge and fine sponge are recommended to replace once every 2 months. The carbonized sponge is recommended to replace once every month

32. Kulife Aquarium Filters & Filter Replacement Cartridge – 3-Stage Aquarium Filter Internal Filter Fish Tank Filter Turtle Filter for 10-100 Gallon Fish Tanks with Dual Water Outlet and Aeration

By Brand: Kulife

Kulife Aquarium Filters & Filter Replacement Cartridge – 3-Stage Aquarium Filter Internal Filter Fish Tank Filter Turtle Filter for 10-100 Gallon Fish Tanks with Dual Water Outlet and Aeration

PERFORMANCE – Max. Flow 130GPH (500L/H), Max lift 2ft (0.6m), Power 3.5W. For tank size of 10-40 gallons.REMINDER: Choose the right filter for your tank. A filter can’t cover tanks of big differences in capacity (as claimed by some products online)! Follow our recommendations for your tank.
3-STAGE FILTRATION – 3 sponge blocks – coarse sponge, carbonized sponge and fine sponge provide 3-stage filtration. COARSE SPONGE filters out large size impurities such as food residue, fish excrements, plant leaves etc.; CARBONIZED SPONGE removes odor, chlorine and fine particles; FINE SPONGE polishes water before it goes back to tank. PLUS the transparent box makes it easy to observe the filtering material when they get dirty. Search code "B09KXZXCQV" for the replacement sponges
These replacement sponges are used for Kulife aquarium filters 130GPH / 225GPH / 300GPH only. Do not use it for any other products
Filter Replacement Cartridge - Includes coarse sponge x2, carbonized sponge x4, fine sponge x2
The coarse sponge and fine sponge are recommended to replace once every 2 months. The carbonized sponge is recommended to replace once every month

33. HiTauing 6/12 Packs PF-S Filter Cartridges for Top Fin Silenstream Filter Cartridges PF10 Power Filters

By HiTauing Store

HiTauing 6/12 Packs PF-S Filter Cartridges for Top Fin Silenstream Filter Cartridges PF10 Power Filters

Strong Compatibility: The specific size of our aquarium filter cartridge is 5.5 in L x 3.1 in W. It is very suitable for Top Fin Silenstream Power Filters PF10. With this aquarium filter cartridge, you can keep your tank water healthy every moment. It contains 6+12 packs aquarium filter cottons, which you can change every 2-4 weeks
Excellent Filtration Performance: The filter cotton is made of cotton and carbon and has 3-layer filtering effect, which can filter and absorb 99% of the sundries, so as to keep the water source clean and the healthy growth of fish.
Long-term Replacement of the Aquarium Filter: According to the test, the filter cotton has already withstood too much sundries for no more than four weeks, so you need to replace it with a new one to keep the water source healthy and clean at all time. Suggest to change filter cartridge every 2-4 weeks.
Quick Installation: Just remove used cartridge and rinse new cartridge under cool water to remove dust. After rinsing, insert caftridge into flter chamber to protect the health and safety of your fish all the time.
High-quality After-sales Service: HiTauing produces high-quality filter cartridges for fish tank filter, and is in a leading position in the quality and craftsmanship of all our products. We maintain a thorough quality control process to ensure compatibility with TOP FIN SILENSTREAM PF-S. If you have any questions, please feel free to contact us!

34. HiTauing 6/12 Pack PF-L Carbon Filter Cartridges for Top Fin PF-L Silenstream Filter Cartridges PF20, PF30, PF40 and PF75 Power Filters

By HiTauing Store

HiTauing 6/12 Pack PF-L Carbon Filter Cartridges for Top Fin PF-L Silenstream Filter Cartridges PF20, PF30, PF40 and PF75 Power Filters

Strong Compatibility: The specific size of our aquarium filter cartridge is 6 in L x 4.5 in W. It is very suitable for Top Fin PF20, PF30, PF40 and PF75 Power Filters. With this aquarium filter cartridge, you can keep your fish tank water healthy every moment. It contains 6+12 packs aquarium filter cottons, which you can change every 2-4 weeks.
Excellent Filtration Performance: The filter cotton is made of cotton and carbon and has 3-layer filtering effect, which can filter and absorb 99% of the sundries, so as to keep the water source clean and the healthy growth of fish.
Long-term Replacement of the Aquarium Filter: According to the test, the filter cotton has already withstood too much sundries for no more than four weeks, so you need to replace it with a new one to keep the water source healthy and clean at all times. Suggest to change filter cartridge every 2-4 weeks.
Quick Installation: Just remove used cartridge and rinse new cartridge under cool water to remove dust. After rinsing, insert caftridge into flter chamber to protect the health and safety of your fish all the time.
High-quality After-sales Service: HiTauing produces high-quality filter cartridges for fish tank filter, and is in a leading position in the quality and craftsmanship of all our products. We maintain a thorough quality control process to ensure compatibility with TOP FIN PF20, PF30, PF40 and PF75 Power Filters. If you have any questions, please feel free to contact us!

35. MarineLand Magnum Polishing Internal Canister Filter, for Aquariums Up to 97 Gallons, 10.5 in (ML90770) ML90769 JH Floss Sleeve Magnum Polishing Internal Filter (3 Pack)

By MarineLand Store

MarineLand Magnum Polishing Internal Canister Filter, for Aquariums Up to 97 Gallons, 10.5 in (ML90770) ML90769 JH Floss Sleeve Magnum Polishing Internal Filter (3 Pack)

Product 1: INTERNAL CANISTER FILTER: Submerged motor for quick and easy startup.
Product 1: VERSATILE FILTRATION: Two refillable chambers house carbon or customizable filter media.
Product 1: MICRON WATER POLISHING: High-efficiency polishing with the micron cartridge (included).
Product 1: FOR aquariumS UP TO 97 GALLONS: Capable of filtering 290 gallons of water per hour.
Product 2: Fits the Marineland Magnum Polishing Internal Canister Filter
Product 2: Traps small dirt particles
Product 2: Prevents premature clogging
Product 2: Prolongs filter media life

36. TetraFauna ReptoFilter Filter Cartridges 3 Count, Size Large, Filter Cartridge Refills & Fauna ReptoGuard Turtle Health Conditioner 3 Count, Slow-Release (19514)

By Tetra Store

TetraFauna ReptoFilter Filter Cartridges 3 Count, Size Large, Filter Cartridge Refills & Fauna ReptoGuard Turtle Health Conditioner 3 Count, Slow-Release (19514)

Product 1: EFFICIENT FILTRATION Cleans and removes odors from water in turtle newt and frog terrariums
Product 1: DUAL-SIDED MESH Catches debris and waste to keep water crystal clear
Product 1: CONVENIENT Disposable fully assembled and ready to use
Product 1: EASY TO REPLACE Replacing cartridges is fast and easy – change every four weeks
Product 2: TURTLE HEALTH CONDITIONER Slow-release dissolving blocks help create a healthier environment for aquatic turtles amphibians and other reptiles
Product 2: Controls a variety of organisms including salmonella for the safety of aquatic turtles and their owners
Product 2: SLOW RELEASE Each sulfa-medicated block dissolves slowly and lasts up to 60 days
Product 2: TURTLE SHAPE Unique turtle-shaped blocks are safe effective and economical

37. VILLNO 9W 200GPH Aquarium Filter and 2 Pack Replacement Activated Carbon Filter Cartridges

By Brand: VILLNO

VILLNO 9W 200GPH Aquarium Filter and 2 Pack Replacement Activated Carbon Filter Cartridges

2 Pack replacement activated carbon filter cartridges, suitable for VILLNO 9W 200GPH Aquarium Filter.
There are many activated carbon balls inside this filter cartridge, and the outside is tightly sealed with filter cotton to prevent carbon balls from leaking out.
It is recommended to replace the activated carbon filter cartridge every 1-2 months based on the usage of the filter.

38. VILLNO 3W 100GPH Aquarium Filter and 4 Pack Replacement Activated Carbon Filter Cartridges

By Brand: VILLNO

VILLNO 3W 100GPH Aquarium Filter and 4 Pack Replacement Activated Carbon Filter Cartridges

There are many activated carbon balls inside this filter cartridge, and the outside is tightly sealed with filter cotton to prevent carbon balls from leaking out.
Activated carbon has the function of removing odors and decomposing impurities, which can quickly filter and decompose impurities in water, making the water in the fish tank clean and odorless.
It is recommended to replace the activated carbon filter cartridge every 1-2 months based on the usage of the filter.

39. Penn-Plax Undergravel Aquarium Filter for 40-55 Gallon Tanks – Four 11.25” x 11.25” Plates & Standard Airline Tubing for Aquariums – 25 Feet

By Penn-Plax Store

Penn-Plax Undergravel Aquarium Filter for 40-55 Gallon Tanks – Four 11.25” x 11.25” Plates & Standard Airline Tubing for Aquariums – 25 Feet

Product 1: NOTHING LIKE OLD SCHOOL
Product 1: BIOLOGICAL, CHEMICAL, AND PHYSICAL FILTRATION
Product 1: ALSO AERATES YOUR TANK
Product 1: ITEMS INCLUDED: The Clear-Free Premium Under Gravel Filter includes 4 Filter Plates, 4 Adjustable Lift Tubes, 4 Straight Airline Tubes, 9 Filter Plate Connecters, and 4 Replaceable Filt-a-Carb Activated Carbon Media Cartridges.
Product 2: BASIC NECESSITY FOR AQUARISTS
Product 2: CLEAR, FLEXIBLE, AND DURABLE
Product 2: SAFE FOR FISH
Product 2: MEASUREMENTS

40. Marineland Penguin Rite-Size Cartridge,power filter cartridge, fit penguin 75 & 100,6 count & API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle

By MarineLand Store

Marineland Penguin Rite-Size Cartridge,power filter cartridge, fit penguin 75 & 100,6 count & API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle

Product 1: REPLACEMENT FILTER CARTRIDGE
Product 1: EASY TO INSTALL
Product 1: THREE-STAGE FILTRATION
Product 1: Chemically filtered through Black Diamond Premium Activated Carbon.
Product 2: Contains one (1) API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle
Product 2: Makes tap water safe and protects fish with dual-action formula
Product 2: Removes chemicals from tap water that are harmful to fish
Product 2: Replaces fish’s protective coat damaged by handling or fish fighting with healing power of Aloe Vera extract

41. MarineLand Penguin Power Filter Rite-Size Cartridge 6-Count & TetraMin Plus Tropical Flakes, Cleaner and Clearer Water Formula 7.06 Ounce (Pack of 1)

By Brand: MarineLand

MarineLand Penguin Power Filter Rite-Size Cartridge 6-Count & TetraMin Plus Tropical Flakes, Cleaner and Clearer Water Formula 7.06 Ounce (Pack of 1)

Product 1: REPLACEMENT FILTER CARTRIDGE: Pack of 6 cartridges fits Marineland Penguin PRO Power Filters 100, 125 and 175; also fits the original Penguin Power Filter 150.
Product 1: EASY TO INSTALL: Pre-assembled cartridges slide easily into place, providing mechanical and chemical filtration and making replacement fast, dry and effortless.
Product 1: THREE-STAGE FILTRATION: Mechanically filters water through a pad of double-thick poly fiber.
Product 1: Chemically filtered through Black Diamond Premium Activated Carbon.
Product 2: TROPICAL FORMULATION: Highly digestible flake blend for use as staple food for all tropical fish.
Product 2: PLUS SHRIMP: With natural shrimp for maximum flavor – a natural attractant for aquarium fish.
Product 2: FOR ALL TROPICAL FISH: ProCare blend helps support your fish’s immune system for optimal health and long life.
Product 2: CLEAR-WATER FORMULA: Won’t cloud water when used as directed.

author img Lucas Carter

Our Editor-in-Chief, Lucas Carter, brings over twenty years of hands-on experience in the world of aquaristics. He is not just an expert in aquarium keeping but also a passionate advocate for the hobby. Lucas's extensive knowledge of aquarium accessories, understanding of different aquatic ecosystems, and a keen eye for product quality set the standard for our reviews. His personal commitment is to guide both novice and experienced aquarium enthusiasts through the vast ocean of products, helping them create the ideal environment for their aquatic friends.