Editor's Choice - Our Favorite 40 Gallons Aquarium Filters

1. Zilla Internal Filter for Aquactic Reptiles, 40 Gals

User Ratings: 70 6

Zilla 100528849 First Impressions

"This thing is a beast."

It was perfectly quiet without any extra effort on my part. They can be very noisy at the impeller, which sometimes quiets in time, but may not. That water got so dirty we had to keep changing it every 2 or 3 days. The current is strong but you can adjust it with the midsection lever. I stopped the pump and I pulled it apart. I wasn't able to fill my tank fully because there was little to no surface agitation. I can hear it 3 rooms away grinding away.

  • Zilla Internal Filter for Aquactic Reptiles, 40 Gals
  • For aquatic turtle terrariums up to 40 gallons
  • It works hard to keep terrariums clean
  • Includes suction cups and hanging clips that make installation quick and easy
  • A protective grate is in place to prevent the your Turtle from accidentally entering the filter
  • Each filter comes with a replaceable carbon cartridge that removes odor, waste, and debris from water
  • Medium carbon cartridge included
  • Protective grate prevents animal from entering the filter
  • Patented power filtration
  • Manufacture: Central Garden & Pet
  • Item Weight: 2.79 pounds
  • Product Dimensions: 6.5 x 6 x 11.25 inches
  • Editor's Impressions Of The Zilla 100528849
  • Filter Effectiveness
  • Quality
  • Value For Money
  • Affordability

Zilla 100528849 Final Thoughts

"Just a tip!"

I want to answer some of the complaints I've read. I'm a mechanical engineer and understand design. Once it loses its charge, you'll need to replace it. This one is working perfectly good FOR RIGHT NOW. Doing research I learned that if I add more filter media, the noise will subside. I took it apart reassemble it and it's not pumping in the water. It's easy to clean and we all know about easy.

Overall Score
4.4


(835 Points)

Peoples Choice - Other Highly Rated 40 Gallons Aquarium Filters

2. Aquarium Turtle Filter Waterfall Flow Water Clean Pump Bio-Filtration for Reptiles Tank Low Level Wa...

User Ratings: 55 13

JackSuper First Impressions

"MINE IS VERY QUIET."

I want to answer some of the complaints I've read. In the afternoon the noises started again. I bought a top fin 55 gallon aquarium on sale. I've think I've had had six of them. You do have to unplug it for those two jobs. The Marineland penguin 350 is a great filter. I have contacted customer service to see if I can get a replacement unit.

  • Aquarium Turtle Filter Waterfall Flow Water Clean Pump Bio-Filtration for Reptiles Tank Low Level Waterfall Filter for Small Fish Tank Turtle Tank Shrimp Tank Amphibian Frog Crab
  • We have the 90 days replacement and the refund service. All the emails will be replied within 24 hours. We have lifetime technique support, please feel free to contact us for any quality problem. We will do our best to help you.
  • Perfect Aquarium filter for aquatic turtle tanks, Reptiles, Amphibians, Frog, Cichlids, Newt or Fish tank in any aquarium up to 40 gallons
  • Easy to install,Water filter pump can be hung on the aquarium or fixed with sucker. Low water level capability(Lowest water level 1.6inch/4cm)
  • Water circulation and cleaning:this turtle filter helps water cycling,the Activated carbon cartridges and bio ball help clean water,absorbs odors and discoloration,provide a healthy water for your aquarium
  • High performance, the motor set under the water,more quiet than external filter,you can creat a waterfall with rock inside the fish tank
  • Filter waste and stop the waste go into power head
  • Protect your filter power head and prevent small fish or animal suck in the filter.
  • absorbs odors and discoloration
  • Manufacture: JackSupermall
  • Product Dimensions: 8.27 x 3.66 x 2.76 inches; 14.39 Ounces
  • Editor's Impressions Of The JackSuper
  • Filter Effectiveness
  • Quality
  • Value For Money
  • Affordability

JackSuper Final Thoughts

"This is the one."

I had a lot of particles in the water. They are easily found from mom-n-pop pet stores to large chain stores. Get it and take heed to what I wrote. Overall, I like the 350's slim back design, and be able to add up to 4 cartridges. Firstly, I'd recommend taking the motor apart and putting it back together. I AM IMPRESSED THAT IT WORKS AS IT ACTUALLY SHOULD! It's easy to clean and we all know about easy.

Overall Score
3.9


(763 Points)

3. AQQA Aquarium Fluidized Moving Bed Filter,Media Submersible Sponge Filter with Air Stone Ultra-Silen...

User Ratings: 70 8

AQQA First Impressions

"I like the design."

I can take apart a car engine and put it back together. This is not my first experience with a marineland filter. That water got so dirty we had to keep changing it every 2 or 3 days. You do have to unplug it for those two jobs. I had to cut the hood to make it work. Never ever ever use it past a year. Therefore, you wouldnt have 2 filters running.

  • AQQA Aquarium Fluidized Moving Bed Filter,Media Submersible Sponge Filter with Air Stone Ultra-Silence Dissolved Oxygen,Air Pump Accessories,for Fresh Water and Salt-Water
  • 【Tumble Filter,Create a ECO environment】Imitate the tumbling filtering method of natural riverbed sand and gravel,New fluid bed filter material,Continuously tumbling to quickly cultivate nitrifying,The filter materials collide with each other, are regenerated and replaced, and the filter materials self-repair and then work again. There is no need to replace the filter materials.
  • 【Bottom Filter Cover and Filter Sponge, Double Physical Filter】Durable, reinforced ABS case, with a cover which protects thefish without affecting water intake.The matching filter sponge can filter large particles of impurities,
  • 【Contains small air stone to increase the amount of dissolved oxygen】The bubble stone can not only increase the oxygen content in the water, but also drive the movement of the fluidized bed filter material,accelerate the cultivation of nitrifying environment,and quickly purify the water quality,Quiet work and fine bubbles.
  • 【Easy to use】Connect the air pump with a hose, put it in the fish tank, and it can be used normally. It is recommended to use it after soaking for 1-2 hours.Product with 4 powerful suction cups, which can be placed firmly around the fish tank.please choose a powerful pump for this filter according to your tank size.please choose a powerful pump for this filter according to your tank size.Please note that the air pump and hose are not included.
  • 【Easy to clean,suitable for freshwater and saltwater】Disassembly and assembly are very simple and can be easily removed for cleaning,Very suitable for various fish tanks,turtle tanks,shrimp tanks,aquaponics,aquaculture,hydroponics and ponds.Suggest 10-40 gallons.One year warranty, please rest assured to buy,if you have any questions,welcome to consult.
  • Manufacture: AQQA
  • Editor's Impressions Of The AQQA
  • Filter Effectiveness
  • Quality
  • Value For Money
  • Affordability

AQQA Final Thoughts

"I hope this helped."

A canister or in tank filter is ten times more work and messy. I also like the fact that it is relatively low profile and discreet looking. Never ever ever use it past a year. My fish are definitely happier and my water is crystal clear. LOW and BEHOLD, LMAO, I missed where you had to put water in the back of the filter. I've been researching so many things on how to take care of them. It's only rated at 25 gph less, but holds considerably less media.

Overall Score
4.4


(64 Points)

4. AQQA Aquarium Sponge Filter, Power Driven Double Biochemical Water Filter, Quiet Submersible Foam Fi...

User Ratings: 58 5

AQQA First Impressions

"Expensive."

I checked and cleaned it and still just as loud. SO, I sat down and read EVERY little thing in rhe instructions. I have always used Marineland filters and been happy with them and their quality. Marineland bio pumps have been around forever. I was using a Tetra in-tank filter previously. I will pick 3-4 of these at one time over a single system any day. I decided to go with this filter since I had a positive experience previously.

  • AQQA Aquarium Sponge Filter, Power Driven Double Biochemical Water Filter, Quiet Submersible Foam Filter with 2 Extra Sponges, 1 Bag of Filtered Ceramic Balls for Fresh and Salt Water Fish Tank (S/M)
  • MULTIPLE FUNCTIONS: AQQA sponge filter with 9-layer ribbing shape sponge design, provide both mechanical and biological filtration, combines bio-filtration, oxygenation and physical filtration in one. The sponge can absorb fine particles to achieve the effect of purifying water, and the outlet can rotate 360 degrees without dead ends, provide the most suitable living environment for your fishes
  • POWER DRIVEN,MORE EFFICIENT: Reliable, convenient and easy to set up. Don't need to connect to the air pump. Plug it in. It works. Compared with the ordinary sponge filter, it saves the money to buy the air pump. It has extra ceramic bio filter balls in a media container , will help to remove harmful substance and provide extra cleaning power. It also comes with 4 sponges, you can replace the filter media to enhance water quality
  • 4 PCS REMOVABLE SPONGES: You can take down the sponge from the filter easily to clean or replace it. Sponge filters traps floating debris and protect your baby fish from being sucked up into the filter. Suitable for shrimp, betta, tropical fish, planted tanks or others. Don't use tap water to clean sponges, just rinse or squeeze it by using the aquarium water
  • S/M Filter Dimensions: Small filter is 6" in width and 11" in height, sponge dimension is 1.97" in width and 4.33" in height, the sponge inside circle diameter is 0.51 inch, suggest for 10 to 40 gallons fish tank. Medium filter is 6.3" in width and 11" in height, sponge dimension is 2.36" in width and 5.12" in height, the sponge inside circle diameter is 0.62 inch, suggest for 15 to 55 gallons fish tank. NOTE: L as a “clerical error”
  • EASY TO USE: With 2 strong suction cups you can stick the filter firmly to any tank position under water, without floating. Retractable outlet pipe can be extended and rotated , is convenient to adjust the height of air outlet, change the direction and height of the water flow, in order to meet your requirements. Suitable for freshwater & saltwater and all kinds of ornamental fish breeding, breeding and fish formation
  • Manufacture: AQQA
  • Editor's Impressions Of The AQQA
  • Filter Effectiveness
  • Quality
  • Value For Money
  • Affordability

AQQA Final Thoughts

"Kudos to Amazon prime!"

It's only rated at 25 gph less, but holds considerably less media. You can't really tell though, and the filter is working great. If that does not work, look into silicone grease so you can lube the impeller. The ability to regulate the flow solves the loud waterfall problem. I was worried about some of the negative reviews. I attempted to clean and lube the impeller, but to no avail. I have contacted customer service to see if I can get a replacement unit.

Overall Score
4.2


(31 Points)

5. Aqueon Quietflow Internal Power Filter

User Ratings: 56 12

Aqueon 100106970 First Impressions

"Best to you all!"

You can't really tell though, and the filter is working great. Really happy with the money I was able to save. I also don't like how short the intake tube is. I contacted Marineland about my issue and they promptly sent me a new one right away! I returned the Aqua Clear 70 and promptly received a replacement. This lives up to the praise that people give it. I ordered 4 of these, for different tanks of course.

  • Aqueon Quietflow Internal Power Filter
  • Fully submersible in vertical or horizontal position
  • Adjustable return flow rate
  • Direction and height of water return is also adjustable
  • Three stage filtration: dense foam for particles and debris, activated carbon for toxins, odors and discoloration and patented BioGrid for ammonia and nitrates
  • Uses Aqueon Replacement Internal Filter Cartridges
  • Adjustable direction and height of return
  • AT10 is recommended for 10 gallon tanks, flow rate is 57 GPH and uses 1 small replacement cartridge
  • Limited lifetime warranty
  • Manufacture: Central Garden & Pet
  • Product Dimensions: 2.75 x 1.5 x 5.38 inches; 9.6 Ounces
  • Editor's Impressions Of The Aqueon 100106970
  • Filter Effectiveness
  • Quality
  • Value For Money
  • Affordability

Aqueon 100106970 Final Thoughts

"So far so good!"

Following morning it was running quietly. The Marineland penguin 350 is a great filter. I was new to the hobby and didn't realize that Tetras were inferior filters. What I don't like is how much smaller it is than the Aqueon. This is not my first experience with a marineland filter. I want to answer some of the complaints I've read. BUT after some YouTube research I was able to fix the noise issue.

Overall Score
4.0


(995 Points)

6. Eheim 6666 Pro 4+ Canister Filter

User Ratings: 47 24

Eheim 6666 First Impressions

"Really like the filter."

I stopped the pump and I pulled it apart. I was using a Tetra in-tank filter previously. The instructions are a bit to much for me. The current is strong but you can adjust it with the midsection lever. Clean the foam insert apparently it pulled a lot of dirt and needs cleaned. Overall I would recommend this item. I wasn't able to fill my tank fully because there was little to no surface agitation.

  • Eheim 6666 Pro 4+ Canister Filter
  • This product is easy to use. This product adds a great value. This product is manufactured in Germany. This product is designed for pets and there use.
  • This new Filter doesn't just boast a new sleek Black color but it also has a range extender function
  • As with most Eheim filters, the Pro4+ comes complete with Filter Pads and media and all installation Equipment
  • Country Of Origin: Germany
  • Manufacture: Prime Pet Deals - Code 2
  • Product Dimensions: 10 x 8 x 6 inches; 8 Pounds
  • Editor's Impressions Of The Eheim 6666
  • Filter Effectiveness
  • Quality
  • Value For Money
  • Affordability

Eheim 6666 Final Thoughts

"I love this filter."

Lightly clean the silver roller pins on the ends. A canister or in tank filter is ten times more work and messy. The bacteria eats the nitrates in the water to help keep it clean. Works like a dream and can't even hear it! I own 3 of these and besides my canister they are my favorite filters. Following morning it was running quietly. , that's what makes this so funny.

Overall Score
3.5


(40 Points)

7. Aquapapa Bio Sponge Filter for Betta Fry Aquarium Fish Tank Up to 60 Gal, 3-Pack (L)

User Ratings: 83 2

Aquapapa FBA_XY-380-3PC -#4 First Impressions

"All around great product."

I also like the fact that it is relatively low profile and discreet looking. You'll want to pull that water from the bottom. Following morning it was running quietly. My baby turtle even loves it so much he won't let go. It's easy to clean and we all know about easy. If that does not work, look into silicone grease so you can lube the impeller. The current is strong but you can adjust it with the midsection lever.

  • Aquapapa Bio Sponge Filter for Betta Fry Aquarium Fish Tank Up to 60 Gal, 3-Pack (L)
  • Provide both mechanical and biological filtration.
  • Simply install an airline into the unit and provide both aeration and filtration for your fish. Aerobic bacteria colonize the sponge providing a bacterial substance to facilitate the nitrogen cycle.
  • The sponge traps larger waste particles mechanically cleaning the water without trapping baby fish.
  • Product dimensions: 4.5”D x 8.0”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.
  • Package includes: 3 pcs of Sponge filters
  • Manufacture: Aquanemo Global
  • Editor's Impressions Of The Aquapapa FBA_XY-380-3PC -#4
  • Filter Effectiveness
  • Quality
  • Value For Money
  • Affordability

Aquapapa FBA_XY-380-3PC -#4 Final Thoughts

"A little goes a long way."

I also like the fact that it is relatively low profile and discreet looking. My old pump was not working very well so I had to make a major clean up. Unlike my old HOB filter, it doesn't sound like a leaky toilet. Months later, this filter is still working great on my 29 gal set up. SO, I sat down and read EVERY little thing in rhe instructions. Months later, this filter is still working great on my 29 gal set up. This is a well designed unit and a lot of bang for the buck.

Overall Score
4.7


(478 Points)

8. AquaTop 550 GPH Forza FZ13 UV Canister Filter with 13W Sterilizer

User Ratings: 68 11

AquaTop FZ13 First Impressions

"Kudos to Amazon prime!"

Typically just below the flat part of the outlets. I eyedball everything and put it together with a look back at instructions. What I don't like is how much smaller it is than the Aqueon. I have purchased several Aqua Clear filters over the years. One thing I think is worth mentioning is the need to prime the filter. I used to have a 37 gallon eclipse aquarium. , that's what makes this so funny.

  • AquaTop 550 GPH Forza FZ13 UV Canister Filter with 13W Sterilizer
  • Suitable for tanks ranging from 125-175 gal
  • 550 gals/hr
  • Multi-stage Filtration System w/ UV
  • Prevents algae growth and controls free Floating parasites and disease causing pathogens
  • Manufacture: Aquatop, Inc.
  • Product Dimensions: 17 x 12.5 x 12.5 inches; 18 Pounds
  • Editor's Impressions Of The AquaTop FZ13
  • Filter Effectiveness
  • Quality
  • Value For Money
  • Affordability

AquaTop FZ13 Final Thoughts

"Peace out Amazonians."

I want to answer some of the complaints I've read. The Marineland penguin 350 is a great filter. They were great to deal with and the new filter is working great! I can hear it 3 rooms away grinding away. I was new to the hobby and didn't realize that Tetras were inferior filters. I want to answer some of the complaints I've read. Really happy with the money I was able to save.

Overall Score
4.1


(53 Points)

9. MarineLand The Best Penguin Power Aquarium Filter, 10 to 20-Gallon, 100 GPH, Fish Tank

User Ratings: 46 16

MarineLand First Impressions

"I bought this filter."

The bacteria eats the nitrates in the water to help keep it clean. Unlike my old HOB filter, it doesn't sound like a leaky toilet. I've think I've had had six of them. It's only rated at 25 gph less, but holds considerably less media. This new AQ50 filter has loose bio-media, i. BUT after some YouTube research I was able to fix the noise issue. I was worried about some of the negative reviews.

  • MarineLand The Best Penguin Power Aquarium Filter, 10 to 20-Gallon, 100 GPH, Fish Tank
  • Certified flow rate of 100GPH, perfect for all aquariums up to 20-gallon, uses the Rite-Size A" filter cartridge"
  • Delivers easy, three stage mechanical, chemical, and biological aquarium filtration
  • Convenient Penguin Rite Size Cartridges come ready to use with each filter
  • Manufacture: MarineLand
  • Editor's Impressions Of The MarineLand
  • Filter Effectiveness
  • Quality
  • Value For Money
  • Affordability

MarineLand Final Thoughts

"This one does!"

Controlling the flow rate doesn't require modifying the filter. Doing research I learned that if I add more filter media, the noise will subside. Once it loses its charge, you'll need to replace it. I can take apart a car engine and put it back together. They were great to deal with and the new filter is working great! I've looked at so many filters and reviews. It's easy to clean and we all know about easy.

Overall Score
3.9


(17 Points)

10. AQQA Aquarium Sponge Filter, Power Driven Double Biochemical Water Filter, Quiet Submersible Foam Fi...

User Ratings: 58 5

AQQA First Impressions

"Expensive."

I checked and cleaned it and still just as loud. SO, I sat down and read EVERY little thing in rhe instructions. I have always used Marineland filters and been happy with them and their quality. Marineland bio pumps have been around forever. I was using a Tetra in-tank filter previously. I will pick 3-4 of these at one time over a single system any day. I decided to go with this filter since I had a positive experience previously.

  • AQQA Aquarium Sponge Filter, Power Driven Double Biochemical Water Filter, Quiet Submersible Foam Filter with 2 Extra Sponges, 1 Bag of Filtered Ceramic Balls for Fresh and Salt Water Fish Tank (S/M)
  • MULTIPLE FUNCTIONS: AQQA sponge filter with 9-layer ribbing shape sponge design, provide both mechanical and biological filtration, combines bio-filtration, oxygenation and physical filtration in one. The sponge can absorb fine particles to achieve the effect of purifying water, and the outlet can rotate 360 degrees without dead ends, provide the most suitable living environment for your fishes
  • POWER DRIVEN,MORE EFFICIENT: Reliable, convenient and easy to set up. Don't need to connect to the air pump. Plug it in. It works. Compared with the ordinary sponge filter, it saves the money to buy the air pump. It has extra ceramic bio filter balls in a media container , will help to remove harmful substance and provide extra cleaning power. It also comes with 4 sponges, you can replace the filter media to enhance water quality
  • 4 PCS REMOVABLE SPONGES: You can take down the sponge from the filter easily to clean or replace it. Sponge filters traps floating debris and protect your baby fish from being sucked up into the filter. Suitable for shrimp, betta, tropical fish, planted tanks or others. Don't use tap water to clean sponges, just rinse or squeeze it by using the aquarium water
  • S/M Filter Dimensions: Small filter is 6" in width and 11" in height, sponge dimension is 1.97" in width and 4.33" in height, the sponge inside circle diameter is 0.51 inch, suggest for 10 to 40 gallons fish tank. Medium filter is 6.3" in width and 11" in height, sponge dimension is 2.36" in width and 5.12" in height, the sponge inside circle diameter is 0.62 inch, suggest for 15 to 55 gallons fish tank. NOTE: L as a “clerical error”
  • EASY TO USE: With 2 strong suction cups you can stick the filter firmly to any tank position under water, without floating. Retractable outlet pipe can be extended and rotated , is convenient to adjust the height of air outlet, change the direction and height of the water flow, in order to meet your requirements. Suitable for freshwater & saltwater and all kinds of ornamental fish breeding, breeding and fish formation
  • Manufacture: AQQA
  • Editor's Impressions Of The AQQA
  • Filter Effectiveness
  • Quality
  • Value For Money
  • Affordability

AQQA Final Thoughts

"Kudos to Amazon prime!"

It's only rated at 25 gph less, but holds considerably less media. You can't really tell though, and the filter is working great. If that does not work, look into silicone grease so you can lube the impeller. The ability to regulate the flow solves the loud waterfall problem. I was worried about some of the negative reviews. I attempted to clean and lube the impeller, but to no avail. I have contacted customer service to see if I can get a replacement unit.

Overall Score
4.2


(31 Points)

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