Editor's Choice - Our Favorite Think Crucial Aquarium Filters

1. Think Crucial Aquarium Filter Replacement Parts - Compatible with Aqua-Tech EZ-Change 3 Aquarium Fil...

User Ratings: 70 5

Think Crucial 20-40 Power Filters, 30-60 Power Filters First Impressions

"Canisters don't."

I will never buy any other HOB no matter what deal they might be offering. They are easily found from mom-n-pop pet stores to large chain stores. You do have to unplug it for those two jobs. If that does not work, look into silicone grease so you can lube the impeller. One thing I think is worth mentioning is the need to prime the filter. Of course the sound all depends on how much water is in the aquarium. I will never buy any other HOB no matter what deal they might be offering.

  • Think Crucial Aquarium Filter Replacement Parts - Compatible with Aqua-Tech EZ-Change 3 Aquarium Filter - Fits Aqua-Tech 20-40 and 30-60 Power Filters
  • 4 PACK OF AQUARIUM FILTER REPLACEMENTS COMPATIBLE WITH AQUA-TECH EZ-CHANGE 3 AQUARIUM FILTER. Filters are essential for premium aquarium air quality and cleaner air. They trap fine dust particles and allergens, preventing them from recirculating. Helps keep your tank free of dust, with frequent filter replacement.
  • CLEAN AND HEALTHY LIFESTYLE: Replacing Aqua-Tech filters should help clean with premium filtration for healthier fish. The aquarium filter screens out dirt and debris. The molded ribbed back has maximum water-to-carbon contact. The filter removes odors, discolorations, and impurities. Change the used filter monthly. Ensure elimination of toxic ammonia and nitrite while avoiding clogging.
  • SIMPLE AND EASY TO INSTALL: Switch out in less than five (5) minutes, providing time efficiency. Our aquarium filter measures 4.5" X 6" X 6.5" inches. Get back to daily activity quickly and make a big difference with filtration in the process. Simply remove the older and dirty filter and replace. It fits well with Aqua-Tech aquarium filter cartridge. Enjoy a clean, fresh, aquarium for healthier fish by using premium, heavy duty equipment, filters and clean water.
  • LONG LASTING REPLACEMENT AQUARIUM FILTER: The aquarium filter is washable and reusable ensuring long life. Replace the Aqua-Tech filter every 2 to 4 weeks for optimal performance or ten (10) to twelve (12) times per year depending upon usage. When a clogged or dirty, it can cause the aquarium to work harder and impact utility bills. We deliver high quality, durable and long lasting replacements. Aquarium filters are extremely important for your AquaTech filtration system.
  • THINK CRUCIAL manufactures premium quality air filters, purifier parts and stands behind the quality and workmanship of all our products. We maintain a thorough quality control process to ensure compatibility with the Aqua-Tech models listed above.
  • Manufacture: Think Crucial
  • Product Dimensions: 0.98 x 0.98 x 0.98 inches; 7.2 Ounces
  • Editor's Impressions Of The Think Crucial 20-40 Power Filters, 30-60 Power Filters
  • Filter Effectiveness [star rating='4.5']
  • Quality [star rating='4.9']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

Think Crucial 20-40 Power Filters, 30-60 Power Filters Final Thoughts

"Its AMAZING."

This is not my first experience with a marineland filter. I've think I've had had six of them. First they are simple and designed to pump and filter aquarium water. I can take apart a car engine and put it back together. I want to answer some of the complaints I've read. You do have to unplug it for those two jobs. My tank is nice and clear and my fish are much happier.

Overall Score
4.4

[star rating="4.4"]
(671 Points)

2. Biohome Ultimate Marine Media, Saltwater Aquarium bio Filter Media

User Ratings: 85 5

Biohome First Impressions

"You'll be happy with it."

Get it and take heed to what I wrote. This filter comes with a sponge, activated carbon, and bio material in a mesh bag. Controlling the flow rate doesn't require modifying the filter. I'm a mechanical engineer and understand design. This filter really does a good job. Overall, I'm very happy with this filter. I thought that U had put it together wrong so I took it all apart and started over.

  • Biohome Ultimate Marine Media, Saltwater Aquarium bio Filter Media
  • | 5 Pound of Biohome ULTIMATE MARINE MEDIA
  • Promotes odorless and clear water
  • One of the best Bio filter Media on the market
  • Support beneficial bacteria growth
  • Great for canister, HOB and sump filters.
  • Manufacture: Biohome
  • Editor's Impressions Of The Biohome
  • Filter Effectiveness [star rating='5']
  • Quality [star rating='3.8']
  • Value For Money [star rating='4.3']
  • Affordability [star rating='5']

Biohome Final Thoughts

"The product itself."

I've looked at so many filters and reviews. I have always used Marineland filters and been happy with them and their quality. Your fish and you will be much happier and stun everyone else. This is not my first experience with a marineland filter. They can be very noisy at the impeller, which sometimes quiets in time, but may not. I was using a Tetra in-tank filter previously. My tank was a mess when I got this pump.

Overall Score
4.7

[star rating="4.7"]
(54 Points)

3. OASE Indoor Aquatics Biomaster

User Ratings: 72 6

OASE Indoor Aquatics 55147 First Impressions

"One piece of advice."

I plan to cycle this new AC 50 on a separate tank and then xfer it to the 20 gallon. I've looked at so many filters and reviews. This lives up to the praise that people give it. I want to answer some of the complaints I've read. I also don't like how short the intake tube is. I used a small pair of pliers and carefully got the pebbles out. This lives up to the praise that people give it.

  • OASE Indoor Aquatics Biomaster
  • External filter operates quietly to circulate and filter your aquarium water
  • Includes 4-stage filtration: biological, mechanical, chemical, and prefiltration
  • Hel-x, suspended filter media, creates the optimal surface area for beneficial bacteria growth
  • The sealed filtration pathway allows you to get the full benefits from all 4-stages of filtration
  • The easy clean prefilter module can be removed separately from the rest of the filter for simple cleaning and to extend the life of your filter
  • Manufacture: OASE
  • Product Dimensions: 9.4 x 9.4 x 19 inches; 16.5 Pounds
  • Editor's Impressions Of The OASE Indoor Aquatics 55147
  • Filter Effectiveness [star rating='4.8']
  • Quality [star rating='4.4']
  • Value For Money [star rating='3.8']
  • Affordability [star rating='3.5']

OASE Indoor Aquatics 55147 Final Thoughts

"I love this filter."

I used to work as a marine biologist for a major state aquarium. I was worried that it might be too much for my aquarium or that it would be loud. I contacted Marineland about my issue and they promptly sent me a new one right away! Marineland bio pumps have been around forever. I used to have a 37 gallon eclipse aquarium. I used a small pair of pliers and carefully got the pebbles out. This is a well designed unit and a lot of bang for the buck.

Overall Score
4.3

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

4. 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 [star rating='3.9']
  • Quality [star rating='3.5']
  • Value For Money [star rating='3.2']
  • Affordability [star rating='3.1']

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

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

5. Penn Plax Cascade Marlin Canister Filter

User Ratings: 37 7

Penn-Plax First Impressions

"It just starts right up."

That water got so dirty we had to keep changing it every 2 or 3 days. Get it and take heed to what I wrote. I was worried that it might be too much for my aquarium or that it would be loud. I checked and cleaned it and still just as loud. They can be very noisy at the impeller, which sometimes quiets in time, but may not. The filter stopped working all of a sudden. The Aqua Clear is on the left and the Aqueon is on the right.

  • Penn Plax Cascade Marlin Canister Filter
  • Clean, Crystal-Clear Water for Fresh and Marine Aquariums
  • Manufacture: Penn-Plax
  • Editor's Impressions Of The Penn-Plax
  • Filter Effectiveness [star rating='3.8']
  • Quality [star rating='4.4']
  • Value For Money [star rating='4']
  • Affordability [star rating='3.1']

Penn-Plax Final Thoughts

"Very pleased!"

Overall I would recommend this item. I own 3 of these and besides my canister they are my favorite filters. Works like a dream and can't even hear it! Lift the sticking wheel outuse a Q-tip to clean the slots where the wheel rests. It's only rated at 25 gph less, but holds considerably less media. You do have to unplug it for those two jobs. I was worried about some of the negative reviews.

Overall Score
3.8

[star rating="3.8"]
(14 Points)

6. Huijukon Double Sponge Filter Aquarium Fish Tank Filter Bio Media Filter with 2 Genuine Spare Sponge...

User Ratings: 50

Huijukon First Impressions

"Just a low hum."

I've looked at so many filters and reviews. The filter stopped working all of a sudden. Therefore, you wouldnt have 2 filters running. Lift the sticking wheel outuse a Q-tip to clean the slots where the wheel rests. There must be a huge batch of these units at Amazon right now that are bad. Also the maker should review the pump design. However, lately I've purchased the Aqua Clear 70 and 50.

  • Huijukon Double Sponge Filter Aquarium Fish Tank Filter Bio Media Filter with 2 Genuine Spare Sponges
  • Air powered sponge filter, comes with two media chambers where additional biological media can be added, both filtration and aeration in one solution, great flow, improve water quality and keeps water well oxygenated, works great without noise【Fits fish tank size: 15 to 60 gallon】
  • Sponge filters provide both mechanical and biological filtration - traps floating debris and fine particles, protect your baby fish from being sucked up into the filter, aerobic bacteria colonize the sponge providing a bacterial substance to facilitate the nitrogen cycle, suitable for both freshwater and saltwater filters
  • Double 9-layer ribbed sponges design, below comes with bio media, very porous ceramic rings that are great for housing bacteria, highly porous structure allows beneficial bacteria to develop quickly, you can replace this ceramic rings or mixed with other medias you like, 2 high density porous filter sponges(80ppi) mean more surface area for beneficial bacterial colonization and faster cycling, keep your fish tank crystal clear and clean
  • Easy to setup: simply install an airline into the unit and turn on the air pump, great way to clean and oxygenate your tanks; Easy to clean: simply take out the sponges, rinse and squeeze them in tank water, remember to clean the sponges weekly and replace regularly
  • Easy to use: save room, comes with 2 suction cups, can be installed anywhere under water and easy to hide behind plants and decor, never floating, air-water outlet is adjustable so you can change direction and height of the water flow; great solution for shrimp tank, betta tank, breeder tank, nano tank, turtle tank, hospital tank, goldfish, axolotls, guppies, fry, baby fish.
  • Manufacture: Huijukon
  • Editor's Impressions Of The Huijukon
  • Filter Effectiveness [star rating='3.7']
  • Quality [star rating='2.5']
  • Value For Money [star rating='4.2']
  • Affordability [star rating='3.2']

Huijukon Final Thoughts

"Suuuuupppeeerrrr Quiet."

I was worried that it might be too much for my aquarium or that it would be loud. The current is strong but you can adjust it with the midsection lever. Get it and take heed to what I wrote. I have always used Marineland filters and been happy with them and their quality. Overall, I like the 350's slim back design, and be able to add up to 4 cartridges. I used a small pair of pliers and carefully got the pebbles out. Fill up the media slot with water until it's full.

Overall Score
3.5

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

7. Ocean Clear Replacement Cartridge for 325 Filter by Ocean Clear

User Ratings: 86

Ocean Clear First Impressions

"These are heavy."

I ordered 4 of these, for different tanks of course. This filter comes with a sponge, activated carbon, and bio material in a mesh bag. SO I decided to order this for my 29 gallon tank. SO I decided to order this for my 29 gallon tank. I can take apart a car engine and put it back together. Controlling the flow rate doesn't require modifying the filter. I AM IMPRESSED THAT IT WORKS AS IT ACTUALLY SHOULD!

  • Ocean Clear Replacement Cartridge for 325 Filter by Ocean Clear
  • Manufacture: Ocean Clear
  • Editor's Impressions Of The Ocean Clear
  • Filter Effectiveness [star rating='4.6']
  • Quality [star rating='5']
  • Value For Money [star rating='3.9']
  • Affordability [star rating='5']

Ocean Clear Final Thoughts

"If anyone knows turtles."

Lift the sticking wheel outuse a Q-tip to clean the slots where the wheel rests. Overall, I'm very happy with this filter. My old pump was not working very well so I had to make a major clean up. It doesn't rise up hugely above the tank like a lot of HOB filters. This is not my first experience with a marineland filter. 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.

Overall Score
4.9

[star rating="4.9"]
(12 Points)

8. Odyssea EX 350 DX Internal Filter Powerhead Aquarium Water Pump Submersible

User Ratings: 75 4

Odyssea First Impressions

"It works great."

I used to work as a marine biologist for a major state aquarium. I decided to go with this filter since I had a positive experience previously. Lightly clean the silver roller pins on the ends. I wasn't able to fill my tank fully because there was little to no surface agitation. All in all, I highly recommend this filter and I'm a extremely happy customer! I also like the fact that it is relatively low profile and discreet looking. I will never buy any other HOB no matter what deal they might be offering.

  • Odyssea EX 350 DX Internal Filter Powerhead Aquarium Water Pump Submersible
  • Flow Rate: 350 GPH
  • For use with 40G - 60G
  • Include air line, filter cone, suction cups
  • Freshwater and Saltwater aquariums
  • 110V Only
  • Manufacture: Odyssea
  • Product Dimensions: 11 x 8 x 3.5 inches; 1.7 Pounds
  • Editor's Impressions Of The Odyssea
  • Filter Effectiveness [star rating='3.6']
  • Quality [star rating='4']
  • Value For Money [star rating='4.9']
  • Affordability [star rating='5']

Odyssea Final Thoughts

"I was to tire to fix it."

Also the maker should review the pump design. It doesn't rise up hugely above the tank like a lot of HOB filters. I attempted to clean and lube the impeller, but to no avail. I had originally got one for my 75 Gallon tank housing an Oscar. You'll want to pull that water from the bottom. Also the maker should review the pump design. Marineland bio pumps have been around forever.

Overall Score
4.5

[star rating="4.5"]
(133 Points)

9. Zoo Med Turtle Clean External Canister Filter, 50-Gallon

User Ratings: 56 25

Zoo Med TC50 First Impressions

"Very pleased!"

The instructions are a bit to much for me. I contacted Marineland about my issue and they promptly sent me a new one right away! My baby turtle even loves it so much he won't let go. My fish are definitely happier and my water is crystal clear. The bacteria eats the nitrates in the water to help keep it clean. What I don't like is how much smaller it is than the Aqueon. My baby turtle even loves it so much he won't let go.

  • Zoo Med Turtle Clean External Canister Filter, 50-Gallon
  • External canister filter with slimline design for tight spaces
  • 200 gallon per hour rating, ideal for turtle habitats up to 50 gallons in size
  • The included spray bar increases oxygenation to help support your turtles' health
  • Double filtering system with both carbon and ceramic filters and internal biological recirculation
  • Combines mechanical, biological, and chemical filtration to give your pets the cleanest, healthiest habitat
  • Manufacture: Zoo Med
  • Product Dimensions: 11.2 x 9.5 x 14.5 inches; 1.2 Pounds
  • Editor's Impressions Of The Zoo Med TC50
  • Filter Effectiveness [star rating='3']
  • Quality [star rating='4.5']
  • Value For Money [star rating='2.9']
  • Affordability [star rating='4.4']

Zoo Med TC50 Final Thoughts

"This is not."

Of course the sound all depends on how much water is in the aquarium. First they are simple and designed to pump and filter aquarium water. My tank was a mess when I got this pump. Never ever ever use it past a year. Replace activated carbon every 6-8 months ish. I plan to cycle this new AC 50 on a separate tank and then xfer it to the 20 gallon. Clean the foam insert apparently it pulled a lot of dirt and needs cleaned.

Overall Score
3.7

[star rating="3.7"]
(86 Points)

10. Powkoo Intake Strainer Filter, Aquarium Fish Tank Pre-Filter Intake Filter Cover Filter Guard

User Ratings: 50 13

Powkoo First Impressions

"This is the one."

I AM IMPRESSED THAT IT WORKS AS IT ACTUALLY SHOULD! Fill up the media slot with water until it's full. Controlling the flow rate doesn't require modifying the filter. SO I decided to order this for my 29 gallon tank. This is a good choice if you're tired of cleaning your turtle tank all the time. I returned the Aqua Clear 70 and promptly received a replacement. That water got so dirty we had to keep changing it every 2 or 3 days.

  • Powkoo Intake Strainer Filter, Aquarium Fish Tank Pre-Filter Intake Filter Cover Filter Guard
  • These little filter covers are great and just what you are looking for. Save your small fish. Fit perfectly on Aqueon QuietFlow 20 Intake
  • Made of food-grade materials,absolutely safe. What you can get: 2pcs x Powkoo Intake Filter Cover for Filter
  • Size: 3.5 x 1.2 inch (H x W) , Inner hole diameter: 0.6 inch / 16mm, Easy to use, sponge cover directly onto the water inlet of your filter
  • Traps particles and debris, enhances biological filtration, prevents small and baby inhabitants from being drawn into filter
  • These intake strainer covers slip easily over the intake tube and prevent any of the fish from it
  • Manufacture: Powkoo
  • Editor's Impressions Of The Powkoo
  • Filter Effectiveness [star rating='4.8']
  • Quality [star rating='4.2']
  • Value For Money [star rating='3.7']
  • Affordability [star rating='3.2']

Powkoo Final Thoughts

"A little goes a long way."

There is a sound from the water shooting into the tank! The filter arrived within 2 days and was the exact same as Petsmart's. I DONT KNOW WHY MANY THINK THIS IS A NOISY FILTER. Typically just below the flat part of the outlets. This new AQ50 filter has loose bio-media, i. This is a good choice if you're tired of cleaning your turtle tank all the time. The instructions are a bit to much for me.

Overall Score
3.8

[star rating="3.8"]
(68 Points)

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