Editor's Choice - Our Favorite CNZ Aquarium Filter Accessories

1. CNZ Aquarium Filter Media Kits

User Ratings: 77 2

CNZ CNZCBR2PK First Impressions

"Works as expected."

The Tetra Medium bio-bag slip easily on an original Top Fin plastic holder. For my smaller fish tank I find that it is just enough. I have a Top Fin 10 power filter and these cartridges fit perfectly. Does the job and price was less or at least same as big retailers. Of course you will need to let the silicone cure before installing in water. Luckily I'm using powerheads and the weight of it helps hold it in place. Fun to modify your filter and clean tank as well.

• CNZ Aquarium Filter Media Kits
• Removes odor, colors, organic pollutants
• Removes toxic compounds, medications
• Extremely porous ceramic media for efficient biological filtration.
• Clarify your water naturally and cultivate beneficial bacteria with these Polypropylene Bio-balls
• increase dissolved oxygen levels
• Manufacture: CNZ
• Product Dimensions: 8 x 7 x 5 inches; 5 Pounds

• Editor's Impressions Of The CNZ CNZCBR2PK
• Quality [star rating='4.7']
• Value For Money [star rating='4.1']
• Affordability [star rating='3.6']

Here Are Some Other Related Aquarium Filter Accessories

2. Aquapapa Multi Layer Filter Media Biochemical Sponge Filters with Extendable Telescopic Air Flow Out...

User Ratings: 49 3

Aquapapa First Impressions

"I would recommend these."

I have always had an undergravel filter and my aquariums. 7in, which is only about half the length of the unit. Don't believe people who tell you they are dangerous for your tank. It was exactly what I needed and fit beautifully. I will always buy these here on Amazon for the price savings. If you don't know much about this just google it. I also suppose my measuring tape may be off, but I would not think so.

• Aquapapa Multi Layer Filter Media Biochemical Sponge Filters with Extendable Telescopic Air Flow Outlet Air Pump Driven for Betta Fry Aquarium Fish Tank Up to 25 Gallon
• Provide both mechanical and biological filtration.
• Simply install an airline into the unit and provide both aeration and filtration for your fish (Air pump sold separately). Aerobic bacteria colonize the sponge providing a bacterial substance to facilitate the nitrogen cycle.
• Sponge + Ceramic multi layer design. The sponge traps larger waste particles mechanically cleaning the water without trapping baby fish. The porous ceramic material is an ideal home for the cycle bacteria to colonize.
• Product dimensions: 2.76”W x 7.48”H; sponge and ceramic compartment dimensions: 1.73”D x 4.6”H. They are useful for as breeding filter or as secondary filter. Or they can be used as pre-filtration unit by fitting to an external or a top filter.
• Max tank size up to 25 gallon. Package includes: 2 pcs of Sponge filters.
• Manufacture: Aquanemo Global

• Editor's Impressions Of The Aquapapa
• Quality [star rating='4.9']
• Value For Money [star rating='3.4']
• Affordability [star rating='4.2']

3. Segarty Filter Media Bags, 10 PCS Aquarium Nylon Mesh Bags with Plastic Zipper, Fish Tank White Net ...

User Ratings: 76 1

Segarty 5101708058 First Impressions

"High quality."

Right now I am letting the filter work it's magic. The first 3 pics are of my RR tank with sump. My pad collected yellow cloudy color also all waste. The other tank is an old AIO retro tank I have with a media rack in it. You can cap off the ones you don't want to use. The Tetra Medium bio-bag slip easily on an original Top Fin plastic holder. I have always had an undergravel filter and my aquariums.

• Segarty Filter Media Bags, 10 PCS Aquarium Nylon Mesh Bags with Plastic Zipper, Fish Tank White Net Bags for Pellet Carbon, Bio Balls, Ceramic Rings, Ammonia Remover
• Versatile media bags are designed for filtration applications, This bag is good for holding large media items, such as Pellet carbon, bio balls, bio ceramic rings, crushed lava rocks, zeolite, gravel. Not for fine, granulated carbon charcoal media. Prevent media from entering your filter system and make your pond clean.
• Zipper is plastic, you do not worry it would rust and produce harmful substances, it great for use in canister filter system, also can be used as laundry bags, storage bags.
• These unique mesh filter bags are easy to fill and empty with top zipper design to keep filter media secure. Our bags are durable, washable, and can be reused.
• Our bags close tight to prevent loose media from potentially causing damage to your water pump or power filter's motor. The bag is 100% nylon and completely safe for both fresh and saltwater aquariums.
• We pride ourselves on that. We want you to know that you matter to us here at segarty. We would offer you 100% risk-free satisfaction guarantee to let you buy with confidence; no questions asked. YOU are our number one priority!
• Manufacture: Segarty

• Editor's Impressions Of The Segarty 5101708058
• Quality [star rating='4.7']
• Value For Money [star rating='3.6']
• Affordability [star rating='5']

4. Tetra Whisper EX Silent Multi-Stage Power Filter for Aquariums

User Ratings: 69 8

Tetra 26313 First Impressions

"Without making a mess!"

The main part is cleaning, that I need to find out. They do feel a little thin but we'll see how they hold up over time. Particles fall off into the aquarium when you take them off to clean them. Customizable in terms of media used. I missed it in my opinion these filters are a must have. Tank is clean and all my new shrimp are still alive! It made no sense why one was ten and the other was twenty.

• Tetra Whisper EX Silent Multi-Stage Power Filter for Aquariums
• WHISPER QUIET The Tetra Whisper EX Power Filter provides silent multi-stage filtration for clear clean water
• FAST SETUP Sets up easily right out of the box – no priming required
• CONTINUOUS FLOW Moves water continuously to prevent debris buildup
• NO-MESS FILTER CARTRIDGE CHANGES Design minimizes dripping to make cartridge changes easy
• SIZE This filter fits 45 to 70 gallon aquariums
• Manufacture: Tetra
• Product Dimensions: 6.31 x 12.88 x 9.5 inches; 2.43 Pounds

• Editor's Impressions Of The Tetra 26313
• Quality [star rating='3.4']
• Value For Money [star rating='3.6']
• Affordability [star rating='5']

5. SLSON 5 Pcs Media Filter Bag Aquarium Fine 180 Micron Mesh Filter Bags Reusable Nylon Drawstring Bag...

User Ratings: 70 3

SLSON First Impressions

"Not any more."

Just be super careful with the tubes! You get what you pay for but i had to work on it a lot. I can now afford to change all my filters at a fraction of the cost. We use this product to the extreme. Fish that are constantly swimming hard will tire and die from stress. I had a 90 gallon aquarium that I did not use an undergravel filter in. It works okay for now but I hope it does not mess up my filter in the long run.

• SLSON 5 Pcs Media Filter Bag Aquarium Fine 180 Micron Mesh Filter Bags Reusable Nylon Drawstring Bags for Fish Tank Activated Carbon,Charcoal,Bio Balls Filter Accessories,White
• FINE FILTER MEDIA BAG: this fine mesh filter bag has 180 micron mesh,fit for most kinds of filter media, like Purigen, Pelletized Carbon, Bio Balls, Ceramic Rings, suitable for freshwater and saltwater tanks,power filters.
• HIGH QUALITY MATERIAL: the aquarium filter bag made of high quality Nylon, durable and corrosion resistant, not subject to degradation from exposure to bleach, caustics, acids, or other harsh environmental exposure likely to take place during regeneration of filter media.
• DRAWSTRING STYLE: unlike the zipper bag, our fish tank filter bag is drawstring style, not contain metal which may easily get rust and pollute your water, more safety for media fiters,reusable and durable.
• MESH DIMENSION: 180 micron mesh, 15cm*20cm/ 6"*7.8", suitable for fine filters. Come with 5 pcs fine mesh drawstring filter bags,suitable for fine filters.
• WIDELY USED: Suitable for freshwater and saltwater tanks,power filters.
• Manufacture: SLSON
• Product Dimensions: 5.9 x 7.87 x 0.08 inches; 0.81 Ounces

• Editor's Impressions Of The SLSON
• Quality [star rating='4.5']
• Value For Money [star rating='3.5']
• Affordability [star rating='4']

6. Fluval Chi Filter Replacement- 3 Filter Cartridges and 1 Foam Biological Cartridge

User Ratings: 82 2

Fluval A1421 First Impressions

"They work very well."

Within a matter of hours I now have a crystal clear tank with pristine water. Does the job and price was less or at least same as big retailers. We operate a saltwater bait store, dealing in live shrimp and bull minnows. If you have a nano tank with filter these would be perfect for that setup. I change my filters once a month, so the 12 pack lasts me a year! Don't restrict air-flow around them as they do get quite warm. Still, the price is of course fine at 4 for 6.

• Fluval Chi Filter Replacement- 3 Filter Cartridges and 1 Foam Biological Cartridge
• Replacement media for the Fluval Chi aquariums
• Contains 1 filter and 3 foam pads
• Media works to provide a healthy aquatic environment
• Replacement media for the Fluval Chi aquariums
• 3 Filter Cartridges and 1 Foam Biological Cartridge
• Media works to provide a healthy aquatic environment
• Manufacture: Fluval
• Product Dimensions: 0.8 x 4 x 5 inches; 0.8 Ounces

• Editor's Impressions Of The Fluval A1421
• Quality [star rating='5']
• Value For Money [star rating='3.7']
• Affordability [star rating='5']

7. BrightWater Bio Premium Cut-to-Fit Foam, Bio Sponge Pad, for Aquarium Fish Tank and Pond Filter 2pac...

User Ratings: 64 4

BrightWater First Impressions

"48 the decision is easy."

The first piece does get a bit dirty and usually only lasts a week. We operate a saltwater bait store, dealing in live shrimp and bull minnows. Why not save some money to put towards more fish or supplies. Plenty strong to support the rocks and gravel in my tank without sagging. I had to take a blade and run it through all the slats because the factory doesnt q. In 20 gallon and under sized tanks these start becoming feasible primary filters. For obvious reasons, don't put them directly above or below a tank.

• BrightWater Bio Premium Cut-to-Fit Foam, Bio Sponge Pad, for Aquarium Fish Tank and Pond Filter 2packs 20 PPI
• For both biological and mechanical filtration systems, for sump or pond
• Cut to fit, 99% open cell, 20 PPI, fine pores structure, 100% new material
• Design for Trapping medium type of waste and housing bacteria
• Supreme durability long lasting life and super easy to clean
• 13"x 13" x 1"=33cm X 33 cm x 2.54 cm, Contain 2 pads
• Manufacture: BrightWater
• Product Dimensions: 13 x 13 x 1 inches; 4.8 Ounces

• Editor's Impressions Of The BrightWater
• Quality [star rating='4']
• Value For Money [star rating='4.5']
• Affordability [star rating='4.8']

8. Aquatic Experts Filter Socks 200 Micron - 4 Inch Ring by 14 Inch Long – Long - Premium Aquarium Fe...

User Ratings: 85 2

Aquatic Experts First Impressions

"Fits just right."

Lets start with the amount of filter material you get. I have a Top Fin 10 power filter and these cartridges fit perfectly. I took off two points because the pictures are misleading. Of course you will need to let the silicone cure before installing in water. I bought these to put over the inlet to the filters in my aquariums. The measurements are about 9 cm long x 4 cm wide and the hole is about 2 cm. Fun to modify your filter and clean tank as well.

• Aquatic Experts Filter Socks 200 Micron - 4 Inch Ring by 14 Inch Long – Long - Premium Aquarium Felt Filter Bags - Custom Made in The USA
• CUSTOMER AND PROFESSIONALS CHOICE - Our 200 micron filter socks are BEST SELLERS - the TOP CHOICE for my clients as well as my aquarium service technicians and both chose 200 micron socks because they do not clog as quickly as smaller microns do, yet they help ensure crystal clear water
• HIGH QUALITY AND REUSEABLE - Solid construction and heavy duty stitching make these socks strong and durable so they can be CLEANED AND REUSED NUMEROUS TIMES. You will receive eight 4 inch by 14 inch long felt filter socks with a 4-inch diameter plastic ring that will fit most sump holders.
• CUSTOM MADE - Our filter bags are constructed only when our factory receives our exact specifications; YEARS OF TESTING produced the perfect blueprint. Other socks may look like ours, but if you want the best, you have found them. To see all of our sizes and quantities simply click above on - by Aquatic Experts - under the title. Proudly made in the USA!
• IMPROVE WATER QUALITY - Our filter socks have interlocking micro-denier felt fibers that are perfect for trapping uneaten food, waste excreted by livestock, decaying plants, detritus, dust, and other floating particulates. Changing filter socks regularly will INCREASE WATER QUALITY by removing solid organic compounds before they continue to break down and add additional nutrients (which can increase algae growth) to your aquarium water.
• TIPS - You will receive our PROFESSIONAL CLEANING INSTRUCTIONS INCLUDED with your filter socks.
• Manufacture: Aquatic Experts

• Editor's Impressions Of The Aquatic Experts
• Quality [star rating='5']
• Value For Money [star rating='5']
• Affordability [star rating='4.2']

9. XMHF Plastic Aquarium Undergravel Filter Board Air Pump Line Hose Tube 20 Pcs Black

XMHF First Impressions

"Quiet and reliable."

Fish that are constantly swimming hard will tire and die from stress. Cut slightly oversized, it seems very effective as a particulate filter. Of course you will need to let the silicone cure before installing in water. I have always had an undergravel filter and my aquariums. So stock your tanks a few fish at a time. For obvious reasons, don't put them directly above or below a tank. Did all of mine The same, never ripped a one and they all fit like a glove.

• XMHF Plastic Aquarium Undergravel Filter Board Air Pump Line Hose Tube 20 Pcs Black
• Product Name: Aquarium Under Gravel Filter 20 Piece
• Material : Plastic; Each Size : 140 x 70 x 12mm/5.5" x 2.8" x 0.5"(L*W*T)
• Tube Size(Approx.) : 32 x 2.5cm/ 12.6" x 1"(H*D);Hose Hole Diameter : 5mm/0.2"
• Air Stone Size : 2.5 x 1.4cm/1" x 0.6"(L*D);Main Color : Black, Clear
• Weight : 420g; Package Content : 20 x Fish Tank Under Gravel Filter 1 x Tube 1 x Air Hose Line and Air Stone
• Manufacture: XMHF

• Editor's Impressions Of The XMHF
• Quality [star rating='5']
• Value For Money [star rating='5']
• Affordability [star rating='5']

10. Aqueon QuietFlow Filter Cartridge, Medium, 12 Cartridges (Pack of 1)

User Ratings: 85 1

Aqueon 100106418 First Impressions

"& was still intact."

I had to rinse the sponges after about 2. I double the size and fold them and put the bagged carbon between the layers. I bought these to put over the inlet to the filters in my aquariums. The air stones, plastic tubing, and charcoal were provided which one would expect. Don't get anything smaller than 750VA as you don't want to overload them. I bought these because I was afraid my shrimp were getting sucked up in the filter. You may notice this brand is lower cost than some others.

• Aqueon QuietFlow Filter Cartridge, Medium, 12 Cartridges (Pack of 1)
• Fits Aqueon QuietFlow Filter: LED PRO Size 10 and E Internal 20 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
• Do not clean Bioholster when replacing the cartridge as it contains beneficial biological bacteria
• Manufacture: Central Garden & Pet
• Item Weight: 14 ounces
• Product Dimensions: 5.3 x 8.5 x 4.5 inches

• Editor's Impressions Of The Aqueon 100106418
• Quality [star rating='5']
• Value For Money [star rating='5']
• Affordability [star rating='4.6']