9 Best Internal Aquarium Filters

Aquarium filters come in all shapes and sizes. Some are external, while others are internal.

Well, that depends on a few factors, including the size of your tank, the type of fish you keep, and how much maintenance you’re willing to do.

In this article, we’re going to focus on the best internal aquarium filters.

Let’s Begin,

Here is The List of 9 Best Internal Aquarium Filter, If You Want To Have A Quick Look

Last update on 2022-09-29 / Affiliate links / Images from Amazon Product Advertising API

What Is An Internal Aquarium Filter?

Internal aquarium filters are devices used to filter water inside an aquarium. Internal filters are popular for many aquarists because they are relatively easy to install and maintain.

Many different types of internal filters are available on the market, each designed to suit a specific type of aquarium.

Some internal filters hang on the back of the aquarium, while others are designed to sit inside the tank.

9 Best Internal Aquarium Filter

Internal filters come in various sizes and flow rates, so choosing one that is appropriate for the size and type of aquarium you have is important.

Internal filters typically use mechanical filtration to remove large particles from the water and chemical filtration to remove dissolved impurities.

Biological filtration may also be used to provide a home for beneficial bacteria that help to break down waste products in the water.

9 Best Internal Aquarium Filters

1. OASE BioPlus Internal

This compact filter is perfect for small to medium-sized aquariums and features a corner design for quiet operation.

OASE Indoor Aquatics Bioplus 100
  • Three stage filtration of biological, mechanical, and chemical filtration are integrated in this compact design
  • Internal corner filter operates quietly to circulate and filter your aquarium’s water
  • Diffuser and adjustable water flow nozzle are built into the filter for uniform surface movement and additional dissolved oxygen

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The diffuser and adjustable water flow nozzle create uniform surface movement and add dissolved oxygen to the water, while the suction feet allow for simple and discreet attachment. All necessary fittings are included, making it easy to get started.

Pros

  • Removable mechanical filter chamber.
  • Great Build quality.

Cons

  • High Price.

2. Penn-Plax Cascade 600 Submersible Internal Filter

This filter cycles water at 175 gallons per hour and is perfect for both freshwater and saltwater aquariums, as well as a variety of terrarium setups.

The adjustable flow switch allows you to increase or decrease the water flow as needed, while the directional flow nozzles provide additional customization and convenience.

Sale
Penn-Plax Cascade 600 Fully Submersible Internal Filter – Provides Physical, Biological, and Chemical Filtration for Freshwater and Saltwater Aquariums
  • QUIET & EFFICIENT: The Cascade 600 Submersible Filter quietly delivers crystal clear water throughout the aquarium. This filter cycles water at 175 Gallons per Hour (GPH) for tanks up to 50 Gallons in…
  • ACCOMMODATING: The adjustable flow switch allows for increased or decreased water flow at will, which is extremely helpful during feeding times, or use it as needed. The directional flow nozzles allow…
  • FULLY SUBMERSIBLE: The Cascade 600 utilizes 2 filter media chambers, and comes with filter media: 1 refillable Carbon Cartridge and 1 Bio-Sponge. In addition to optimizing the colonization of…

Last update on 2022-09-29 / Affiliate links / Images from Amazon Product Advertising API

Plus, the filter comes with four suction cups, so you can mount it vertically or horizontally as desired.

Give your fish the cleanest and clearest water possible with the Penn-Plax Cascade 600 Submersible Filter.

Pros

  • Large capacity.
  • 3 stage

Cons

  • Large profile

3. Tetra Whisper In-Tank Filter 40i

The Tetra Whisper In-Tank Filter 40i with BioScrubber is an all-in-one air pump and water filter system that mounts inside your aquarium with the included clip.

Tetra Whisper In-Tank Filter 40i with BioScrubber – 20-40 gallon (25818), Black
  • UNIVERSAL DESIGN: Tetra Whisper 40i Internal Filter is an all-in-one air pump and water filter system.
  • INTERNAL FILTER: Mounts on the inside of your aquarium with clip (included).
  • CATCHES DEBRIS: Dense, dual-sided mesh filters debris and fish waste.

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The dense, dual-sided mesh filters debris and fish waste, while the air-driven design filters up to 170 GPH and oxygenates the water.

The convenient design uses large, easy-to-change Bio-Bag cartridges and filter mounts inside the aquarium, making it possible to place the tank flush against the wall.

Pros

  • Quietest filter tested.
  • Gentle outflow.

Cons

  • No flow adjustment.

4. Marineland Magnum Polishing Filter

This powerful filter can filter up to 290 gallons of water per hour, making it ideal for aquariums up to 97 gallons.

Sale
MarineLand Magnum Polishing Internal Canister Filter, For aquariums Up To 97 Gallons, 10.5 IN (ML90770-00)
  • INTERNAL CANISTER FILTER: Submerged motor for quick and easy startup.
  • VERSATILE FILTRATION: Two refillable chambers house carbon or customizable filter media.
  • MICRON WATER POLISHING: High-efficiency polishing with the micron cartridge (included).

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The submerged motor makes startup quick and easy, while the two refillable chambers allow you to customize your filtration with carbon or other filter media. Plus, the included micron cartridge provides high-efficiency polishing for sparkling-clean water.

Pros

  • Suits large aquariums.
  • Strong flow rate.
  • Customizable filter media.

Cons

  • Not for small aquariums.

5. Aqueon Quietflow Internal Filter

This fully submersible filter can be installed in a vertical or horizontal position and features an adjustable return flow rate.

Aqueon Quietflow Internal Power Filter, 40 Gallon,
  • Fully submersible in vertical or horizontal position
  • Adjustable return flow rate
  • Direction and height of water return is also adjustable

Last update on 2022-09-29 / Affiliate links / Images from Amazon Product Advertising API

You can also adjust the direction and height of the water return. The three-stage filtration system includes dense foam for particles and debris, activated carbon for toxins, odors, and discoloration, and patented BioGrid for ammonia and nitrates.

Pros

  • Works for shrimp and fish fry.
  • You can direct the water flow, allowing you to place it either horizontally or vertically.

Cons

  • Build quality is not so good.

6. Fluval U3

The Fluval U3 Underwater Filter is a versatile and easy-to-use filter that can be used as a primary or supplementary filter for freshwater and saltwater aquariums.

It features a sleek design with an easy-grip water control panel, and its redesigned media cartridge traps more debris than ever.

Fluval U3 Underwater Filter, Freshwater and Saltwater Aquarium Filter, A475
  • Use as a primary filter for smaller aquariums, or supplementary filter for larger aquariums
  • Sleek design with easy grip water control panel and redesigned media cartridge to trap more debris
  • Convenient flip-top lid allows for quick and easy access to filter cartridge for maintenance or replacement

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The convenient flip-top lid allows quick and easy access to the filter cartridge for maintenance or replacement.

The U3 can be positioned horizontally or vertically, depending on your needs. It’s also designed for use in reptile environments for up to 40 gallons.

So whether you’re looking for a simple and effective way to keep your aquarium water clean and clear or you want to create customized flow patterns and currents, the Fluval U3 Underwater Filter is a great choice.

Pros

  • Quite.
  • convenient easy to remove media baskets.
  • Three output modes.

Cons

  • Small media space.
  • For small Tank.

7. SICCE Shark ADV 400 Internal Filter

This filter is designed with a patented magnetic quick uncoupling system (MCS System) that allows you to add an extra filtering compartment as needed. The modular design makes it easy to customize your filtration setup to suit your specific needs.

The Shark ADV Internal Filter also features an adjustable intake diameter to protect small fish. Plus, the transparent mechanical filter body easily monitors the clogging level.

SICCE Shark ADV 400 Internal Filter, freshwater and saltwater application, for submerged use|106 GPH
  • SHARK ADV: This filter is an exclusively designed internal filter with a patented magnetic quick uncoupling system (MCS System). The modular design allows adding an extra filtering compartment.
  • FISH FRIENDLY: The Shark ADV Internal Filter contains an adjustable intake diameter to protect small fish. It is equipped with a transparent mechanical filter body for easy control of clogging level.
  • PRODUCT DETAILS: The Shark ADV is equipped with a Venturi system for improved oxygenation and features a unique magnet connecting system for easy maintenance. It has a filtering volume of 320 cm3.

Last update on 2022-09-29 / Affiliate links / Images from Amazon Product Advertising API

Other highlights include a Venturi system for improved oxygenation and a unique magnet connecting system for easy maintenance.

With a filtering volume of 320 cm3, the SICCE Shark ADV 400 Internal Filter is perfect for aquariums of up to 100 liters (26.4 gallons).

Pros

  • 3-stage filtration.
  • Adjustable intake diameter to protect small fish.

Cons

  • Can be noisy.

8. Marina I25 Internal Filter

This powerful little filter is perfect for small aquariums up to 6.6 gallons and provides quiet, effective filtration to help reduce odor and pollutants.

Marina I25 Internal Filter
  • Clip on filter for aquariums up to 6.6 gallons
  • Provides quiet operation
  • Works to reduce odor and pollutants

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The included power cartridge makes the cartridge changes a breeze and helps keep your water looking and feeling its best.

Pros

  • Suits small aquariums.
  • Operates quietly.

Cons

  • Can not be fully submerged.

9. JackSuper Ultra Quiet

This amazing filter water pump is designed to fit 20-80 gallon tanks. It has a wide range of applications, making it perfect for use in aquariums, ecological tanks, breeding ponds, landscape tubes, gardens, rockery fountains, Waterfalls, Hydroponic Systems, and Irrigation systems.

Sale
Ultra Quiet Fish Tank Filter 4-in-1 Internal Aquarium Filter,500-1800L/H Submersible Water Filter Pump Multifunctional Filter Water Pump for Betta, Turtle, Pond Fish, Garden. (6W 134GPH (500L/H))
  • 【 Wide applications 】- This Ultra quiet designed filter water pump fits 20-80 gal tank,has a wide range of applications that it can be used in aquariums, ecological tanks, breeding ponds,…
  • 【 Multi-function free switching 】: This filter come with 3 kinds of water outlet,you can switch increase oxygen and filtration, wave maker pump, water change and pump water function easily
  • Effecticent filteration designed 】 Increase filter box size and install 2 pieces sponge,which can effectively filter waste and improve the circulation system to maintain a clean water environment….

Last update on 2022-09-29 / Affiliate links / Images from Amazon Product Advertising API

This filter has 3 different water outlets, so you can easily switch between increasing oxygen levels and filtration, wave maker pump function, water change function, and pump water function.

Additionally, the filter comes with an extra-long power cord (6.6 ft), so you can easily reach your outlet, and 4 suction cups so you can secure it in place.

The filter also features an ultra-quiet design (as low as 27db), so it won’t disturb your fish or peace of mind!

Plus, the easy-to-clean design means you’ll spend less time maintaining your filter and more time enjoying your aquarium.

Pros

  • Highest outflow.
  • Adaptor for aeration and wave.

Cons

  • No instructions for cleaning.

Benefits of Internal Aquarium Filters

Internal aquarium filters are a popular choice for many fishkeepers, and they have several benefits.

One benefit is that they are less likely to be visible in the aquarium, creating a more attractive setup.

They also tend to be less expensive than external filters and relatively easy to install and maintain.

Additionally, internal filters can provide better filtration because they are closer to the substrate, where much of the debris accumulates.

As a result, internal filters can help to keep your aquarium clean and healthy, making them an excellent choice for many fish keepers.

FAQ

Are Internal Aquarium Filters Good?

Internal aquarium filters are a great way to keep your fish tank clean and healthy. They are easy to use and maintain and come in various styles to suit your needs.

How Often Should I Clean My Internal Filter?

You should clean your internal filter every two weeks to keep it running at its best. Cleaning the filter regularly will help to ensure that your aquarium water stays clean and healthy for your fish.

Hey, I am Shuvradeb Biswas a content writer. Fishkeeping is my hobby. There are many problems I faced during my first fishkeeping. So, I made the KeepingWorld.com blog to help new fishkeepers.

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