Editor's Choice - Our Favorite Undergravel Aquarium Filters

1. Lee's Pet Products ALE13200 Undergravel Fishbowl Filter, 1-Gallon

User Ratings: 43 19

Lee's Pet Products 107074 First Impressions

"SIMPLE INSTALLATION."

The only thing you hear is the water and even that is a soothing sound. It was perfectly quiet without any extra effort on my part. I still have my original wheels on the year old 350 with no issues whatsoever. My tank is nice and clear and my fish are much happier. I'm currently in the process of receiving another replacement on that model. I decided to go with this filter since I had a positive experience previously. I returned the Aqua Clear 70 and promptly received a replacement.

  • Lee's Pet Products ALE13200 Undergravel Fishbowl Filter, 1-Gallon
  • Lees under gravel fishbowl filter 1galoon
  • Minimizes maintenance responsibility
  • Comes with plant and carbon cartridge included
  • Manufacture: TopDawg Pet Supply
  • Product Dimensions: 0.02 x 0.02 x 0.02 inches; 0.32 Ounces
  • Editor's Impressions Of The Lee's Pet Products 107074
  • Filter Effectiveness [star rating='4.2']
  • Quality [star rating='3.9']
  • Value For Money [star rating='3.4']
  • Affordability [star rating='4.6']

Lee's Pet Products 107074 Final Thoughts

"So far so good!"

Doing research I learned that if I add more filter media, the noise will subside. This is not my first experience with a marineland filter. I have the topfin 29 gallon tank and used the HOB filter it came with. There is a sound from the water shooting into the tank! I was worried about some of the negative reviews. My fish are definitely happier and my water is crystal clear. This lives up to the praise that people give it.

Overall Score
3.6

[star rating="3.6"]
(156 Points)

Peoples Choice - Other Highly Rated Undergravel Aquarium Filters

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

User Ratings: 43 24

Lee's Pet Products 107075 First Impressions

"Huge capacity."

One thing I think is worth mentioning is the need to prime the filter. I eyedball everything and put it together with a look back at instructions. I used to have a 37 gallon eclipse aquarium. With the 350's inexpensive price point, you can’t go wrong with this powerful filter. I still have my original wheels on the year old 350 with no issues whatsoever. It's easy to clean and we all know about easy. There must be a huge batch of these units at Amazon right now that are bad.

  • 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
  • Manufacture: TopDawg Pet Supply
  • Product Dimensions: 0.02 x 0.02 x 0.02 inches; 0.32 Ounces
  • Editor's Impressions Of The Lee's Pet Products 107075
  • Filter Effectiveness [star rating='2.5']
  • Quality [star rating='2.8']
  • Value For Money [star rating='4.3']
  • Affordability [star rating='4.4']

Lee's Pet Products 107075 Final Thoughts

"AFTER 3 DAYS."

SO, I sat down and read EVERY little thing in rhe instructions. They were great to deal with and the new filter is working great! First they are simple and designed to pump and filter aquarium water. This is not my first experience with a marineland filter. I use Marinelands refillable cartridge for extra carbon on the extra slots. Also the maker should review the pump design. I'm currently in the process of receiving another replacement on that model.

Overall Score
3.5

[star rating="3.5"]
(65 Points)

3. Lee's 40/55 Original Undergravel Filter, 12-Inch by 48-Inch

User Ratings: 54 9

Lee's 13240 First Impressions

"That also didn't work."

I took it apart reassemble it and it's not pumping in the water. My box came in good condition, parts where in tact and new. The filter stopped working all of a sudden. However, lately I've purchased the Aqua Clear 70 and 50. Worst case is that the motor could burn out. My baby turtle even loves it so much he won't let go. I own 3 of these and besides my canister they are my favorite filters.

  • Lee's 40/55 Original Undergravel Filter, 12-Inch by 48-Inch
  • Made of special quality plastic which resists splitting and cracking
  • Also has optional flow-thru set-up for use with a power head
  • Size: 12-inch by 48-inch
  • Manufacture: Lee's Pet Products
  • Product Dimensions: 11.63 x 3.38 x 12.5 inches; 1 Pounds
  • Editor's Impressions Of The Lee's 13240
  • Filter Effectiveness [star rating='4.4']
  • Quality [star rating='4.5']
  • Value For Money [star rating='4.7']
  • Affordability [star rating='4.4']

Lee's 13240 Final Thoughts

"It just is."

All in all, I highly recommend this filter and I'm a extremely happy customer! , that's what makes this so funny. There is a sound from the water shooting into the tank! I have had no issues with it being to loud. My old pump was not working very well so I had to make a major clean up. I was also having oxygen issues because of this. I decided to go with this filter since I had a positive experience previously.

Overall Score
4.1

[star rating="4.1"]
(53 Points)

4. Imagitarium Undergravel Filter, 10 Gallon

User Ratings: 65 7

Imagitarium First Impressions

"Its AMAZING."

SO I decided to order this for my 29 gallon tank. You do have to unplug it for those two jobs. I had to cut the hood to make it work. I'm a mechanical engineer and understand design. I contacted Marineland about my issue and they promptly sent me a new one right away! Once I found that, the world was right again. I sent a request for replacement and one came the next day.

  • Imagitarium Undergravel Filter, 10 Gallon
  • Works freshwater and saltwater tanks
  • Compatible with 10-gallon size tanks
  • Two filter cartridges included
  • Compatible with Penn Plax Filt-a-Carb replacements filters
  • Compatible with Penn Plax Ammonia-X replacement filter
  • Manufacture: Imagitarium
  • Item Weight: 8.8 ounces
  • Editor's Impressions Of The Imagitarium
  • Filter Effectiveness [star rating='4.4']
  • Quality [star rating='5']
  • Value For Money [star rating='3.5']
  • Affordability [star rating='4.5']

Imagitarium Final Thoughts

"And it is so quiet."

Worst case is that the motor could burn out. This filter comes with a sponge, activated carbon, and bio material in a mesh bag. It's only rated at 25 gph less, but holds considerably less media. Months later, this filter is still working great on my 29 gal set up. Oscars are very messy fish, especially during feeding. Once I found that, the world was right again. One thing I think is worth mentioning is the need to prime the filter.

Overall Score
4.3

[star rating="4.3"]
(40 Points)

Honorable Mentions - More Top Selling Undergravel Aquarium Filters

5. Lee's 30L Original Undergravel Filter, 12-Inch by 36-Inch

User Ratings: 51 12

Lee's 13230 First Impressions

"Works great."

I will never buy any other HOB no matter what deal they might be offering. Now I'm having the same issue with the Aqua Clear 50. I'd highly recommend not replacing the bio material& sponge, ever. Following morning it was running quietly. I've think I've had had six of them. My fish are definitely happier and my water is crystal clear. I DONT KNOW WHY MANY THINK THIS IS A NOISY FILTER.

  • Lee's 30L Original Undergravel Filter, 12-Inch by 36-Inch
  • Made of special quality plastic which resists splitting and cracking
  • Also has optional flow-thru set-up for use with a power head
  • Size: 12-inch by 36-inch
  • Manufacture: Lee's Pet Products
  • Product Dimensions: 11.75 x 2.5 x 12.5 inches; 2.14 Pounds
  • Editor's Impressions Of The Lee's 13230
  • Filter Effectiveness [star rating='3.5']
  • Quality [star rating='4.5']
  • Value For Money [star rating='4.8']
  • Affordability [star rating='4.8']

Lee's 13230 Final Thoughts

"Like brand new."

There is a sound from the water shooting into the tank! That water got so dirty we had to keep changing it every 2 or 3 days. Overall, I'm very happy with this filter. You do have to unplug it for those two jobs. I had a lot of particles in the water. I sent a request for replacement and one came the next day. I had to lower the surface by 3 inches to get sufficient agitation.

Overall Score
4.1

[star rating="4.1"]
(18 Points)

6. Aqueon Submersible Internal Aquarium Filter, AT10 Gallons

User Ratings: 59 13

Aqueon 100537259 First Impressions

"I love this canister."

I can hear it 3 rooms away grinding away. I still have my original wheels on the year old 350 with no issues whatsoever. Replace activated carbon every 6-8 months ish. I checked and cleaned it and still just as loud. I was worried that it might be too much for my aquarium or that it would be loud. I have had no issues with it being to loud. I took it apart reassemble it and it's not pumping in the water.

  • Aqueon Submersible Internal Aquarium Filter, AT10 Gallons
  • Fully submersible and self-priming
  • Efficiently cleans and filters water
  • Directional return pipe allows for vertical or horizontal mounting perfect for placement in smaller aquariums or shallow water
  • Three stage filtration: dense foam for particles and debris, activated carbon for toxins, odors and discoloration and patented BioGrid for ammonia and nitrites
  • Uses Aqueon Small Replacement Internal Filter Cartridges and meant for aquariums up to 10 gallons
  • Manufacture: Central Garden & Pet
  • Product Dimensions: 3.86 x 1.38 x 5.75 inches; 8.8 Ounces
  • Editor's Impressions Of The Aqueon 100537259
  • Filter Effectiveness [star rating='3.1']
  • Quality [star rating='4.4']
  • Value For Money [star rating='3.1']
  • Affordability [star rating='3.5']

Aqueon 100537259 Final Thoughts

"IMPORTANT!"

Works like a dream and can't even hear it! I was worried that it might be too much for my aquarium or that it would be loud. I put it together, reading instructions of course. Early on it seems to be working as advertised. Lightly clean the silver roller pins on the ends. However, lately I've purchased the Aqua Clear 70 and 50. This one is working perfectly good FOR RIGHT NOW.

Overall Score
4.0

[star rating="4"]
(35 Points)

7. of OCEAN FREE Hydra 50 Internal Filter for 500-800 L (125-200 Gallon) Aquarium

User Ratings: 57 21

Ocean Free IF104 First Impressions

"I like the design."

You'll want to pull that water from the bottom. I will pick 3-4 of these at one time over a single system any day. Overall, I'm very happy with this filter. I plan to cycle this new AC 50 on a separate tank and then xfer it to the 20 gallon. This filter comes with a sponge, activated carbon, and bio material in a mesh bag. Oscars are very messy fish, especially during feeding. Therefore, you wouldnt have 2 filters running.

  • of OCEAN FREE Hydra 50 Internal Filter for 500-800 L (125-200 Gallon) Aquarium
  • Manufacture: Qian Hu
  • Product Dimensions: 4.84 x 3.27 x 11.57 inches; 2.43 Pounds
  • Editor's Impressions Of The Ocean Free IF104
  • Filter Effectiveness [star rating='4.7']
  • Quality [star rating='3.1']
  • Value For Money [star rating='4.8']
  • Affordability [star rating='4.8']

Ocean Free IF104 Final Thoughts

"Great price."

I returned the Aqua Clear 70 and promptly received a replacement. It's only rated at 25 gph less, but holds considerably less media. I put it together, reading instructions of course. Really happy with the money I was able to save. I wasn't able to fill my tank fully because there was little to no surface agitation. Once it loses its charge, you'll need to replace it. I used to have a 37 gallon eclipse aquarium.

Overall Score
3.9

[star rating="3.9"]
(7 Points)

8. OASE Indoor Aquatics Filtosmart Thermo

User Ratings: 63 8

OASE Indoor Aquatics 55164 First Impressions

"It works great."

I use Marinelands refillable cartridge for extra carbon on the extra slots. I had to cut the hood to make it work. I still have my original wheels on the year old 350 with no issues whatsoever. The filter stopped working all of a sudden. SO I decided to order this for my 29 gallon tank. Never ever ever use it past a year. Now I'm having the same issue with the Aqua Clear 50.

  • OASE Indoor Aquatics Filtosmart Thermo
  • The filtosmart thermos 200 has an integrated heater in compact Filter design
  • The built-in heater provides your aquarium with Precise and uniform temperature levels while the product integration delivers unobstructed views of your Aquarium
  • Two stage filtration of biological and mechanical filtration are integrated in this compact design
  • External filter operates quietly to circulate and filter your aquarium water
  • Compact design with large filter surface
  • Included Components: Aquarium Filter With Heater, Filter Media, Tubing, Diffuser, Spray Bar, Fittings, Power Cable, And Stable Base
  • Included Features: Aquarium Filter With Heater, Filter Media, Tubing, Diffuser, Spray Bar, Fittings, Power Cable, And Stable Base
  • Special Features: Adjustable Flow Control Is Built Into The Inlet And Outlet Of The Filter;Diffuser And Spray Bar Can Be Utilized For Uniform Surface Movement And Additional Dissolved Oxygen Integration;Includes A Self-Priming Function For Simple Startup And Continued Operation, For all All Life Stages
  • Manufacture: OASE
  • Product Dimensions: 11 x 7 x 13.3 inches; 11.95 Pounds
  • Editor's Impressions Of The OASE Indoor Aquatics 55164
  • Filter Effectiveness [star rating='5']
  • Quality [star rating='3.6']
  • Value For Money [star rating='5']
  • Affordability [star rating='3.6']

OASE Indoor Aquatics 55164 Final Thoughts

"Not my case!"

Lift the sticking wheel outuse a Q-tip to clean the slots where the wheel rests. The bacteria eats the nitrates in the water to help keep it clean. This is a well designed unit and a lot of bang for the buck. SO, I sat down and read EVERY little thing in rhe instructions. , that's what makes this so funny. The bacteria eats the nitrates in the water to help keep it clean. The ability to regulate the flow solves the loud waterfall problem.

Overall Score
4.2

[star rating="4.2"]
(154 Points)

9. HITOP Submersible Aquarium Internal Filter, Adjustable Underwater Filter, Corner Filter with Water P...

User Ratings: 44 18

HITOP HP-118 First Impressions

"Not ideal but it works."

This new AQ50 filter has loose bio-media, i. My tank was a mess when I got this pump. A canister or in tank filter is ten times more work and messy. Oscars are very messy fish, especially during feeding. Also the maker should review the pump design. I was worried that it might be too much for my aquarium or that it would be loud. Lightly clean the silver roller pins on the ends.

  • HITOP Submersible Aquarium Internal Filter, Adjustable Underwater Filter, Corner Filter with Water Pump for Fish Tank up to 20 Gallon
  • 3W Internal Filter: This aquarium filter quietly delivers 55 gallons per hour of crystal-clear water for your lovely fish, suitable for fresh or marine aquarium, perfect for 5 to 20 gallons, ideal choice for aquarium or turtle/aquatic reptiles use.
  • Adjustable 55 GPH Water Pump, pump head with adjustable and directional water flow, spray bar option allows you to distribute water evenly helping aerate your tank.
  • Space saving corner filter design, 5.7 x 1.6 x 2.4 in / 14.5 x 4 x 6cm, fish tank filter can be placed horizontally and easily hidden.
  • Multiple filter media, the filter with multiple filter media for all filtration purposes. Your lovely fish or turtle will have a clean and fresh environment for living.
  • Warranty: Offer 12 months warranty, leaves no worries for your purchase.
  • Manufacture: Haisen
  • Editor's Impressions Of The HITOP HP-118
  • Filter Effectiveness [star rating='4']
  • Quality [star rating='4']
  • Value For Money [star rating='4.4']
  • Affordability [star rating='2.9']

HITOP HP-118 Final Thoughts

"Turtle tank."

I contacted Marineland about my issue and they promptly sent me a new one right away! Overall I would recommend this item. They can be very noisy at the impeller, which sometimes quiets in time, but may not. I also don't like how short the intake tube is. They can be very noisy at the impeller, which sometimes quiets in time, but may not. Doing research I learned that if I add more filter media, the noise will subside. I have always used Marineland filters and been happy with them and their quality.

Overall Score
3.6

[star rating="3.6"]
(291 Points)

10. WUPYI Aquarium External Filter Fish Tank External Filter Box Aquarium Filter Fish Tank Upper Trickle...

User Ratings: 82

WUPYI First Impressions

"No worries there."

Also price was very reasonable and shipping was fast. I have 4 other AquaClear filters and like them. Once it loses its charge, you'll need to replace it. I decided to go with this filter since I had a positive experience previously. Fill up the media slot with water until it's full. My tank was a mess when I got this pump. I've think I've had had six of them.

  • WUPYI Aquarium External Filter Fish Tank External Filter Box Aquarium Filter Fish Tank Upper Trickle Box Filters System 6-Drawer,Transparent
  • ★360 degree loop rain design, the flow rate is not fast, not sparse, the filter material is fully water, the dissolved oxygen is more sufficient, and the culture is more effective.
  • ★The scientific design of the 360 degree loop tube can effectively use the water flow to achieve a uniform drip effect, which can achieve the perfect balance between energy saving and dripping effect.
  • ★One-piece molding, the box truly "anti-overflow".Easy to clean and Change material, just open the box and change the filter material when needed
  • ★Plastic steel strengthens the bottom plate, which can bear the weight of 160 kg of solid plastic material base. It is not easy to deform and not bend when subjected to large gravity.
  • ★Guarantee the quality is the basic rule.WUPYI is dedicated to providing quality services, quality products and fast delivery(US WAREHOUSE). Any question,please contact us.
  • Manufacture: WUPYI
  • Editor's Impressions Of The WUPYI
  • Filter Effectiveness [star rating='5']
  • Quality [star rating='4.5']
  • Value For Money [star rating='4.9']
  • Affordability [star rating='5']

WUPYI Final Thoughts

"+Great price."

This filter has is a very simple and efficient design. Not sure what I'll do with the more complex design. There is a sound from the water shooting into the tank! I had a lot of particles in the water. My fish are definitely happier and my water is crystal clear. That water got so dirty we had to keep changing it every 2 or 3 days. Firstly, I'd recommend taking the motor apart and putting it back together.

Overall Score
4.8

[star rating="4.8"]
(9 Points)

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