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10 Best 55 Gal Fish Tank Filter 2025 in the United States

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Our Top Picks

#1

Winner

Fluval FX2 High Performance Canister Aquarium Filter - Multi-Stage Filtration, Built-in Powered Water Change System, and Basket-in-Basket Tray Design

Rating
10.0
Chosen by1,266
Filter Type
Flow Rate
Filtration Stages

Most important from
5685 reviews

Filter Type
This filter handles everything for large tanks, eliminating the need for additional filters.
Flow Rate
The adjustable outtake ensures a strong but gentle water flow, suitable even for delicate fish like Discus.
Filtration Stages
Highly efficient, clearing water cloudiness overnight and leaving the tank crystal clear.
Maintenance
Maintenance is straightforward, and the filter's large capacity makes it a great buy for serious aquarium enthusiasts.
Noise Level
The filter operates with an almost silent hum, making it a quiet option for any aquarium setup.
Size and Compatibility
Compared to older models, the FX2 has improved features like better clamps and leak prevention.

The Fluval FX2 High Performance Canister Aquarium Filter is a robust choice for maintaining a 55-gallon fish tank. It boasts an impressive flow rate, filtering up to 475 gallons per hour, which ensures clean and clear water. The multi-stage filtration system, which includes mechanical, chemical, and biological stages, offers thorough cleaning by targeting different types of impurities. This is particularly beneficial for users who want a versatile filter capable of handling various filtration needs.

The built-in powered water change system is a standout feature, making water changes and maintenance more convenient. Additionally, the self-starting mechanism and Smart Pump technology, which auto-evacuates trapped air, simplify the setup and ensure continuous efficient operation. The filter is relatively compact for its capacity, fitting comfortably under most aquariums, and its design includes noise-reducing features such as a unidirectional impeller and rubber feet, making it a quieter option compared to some competitors.

However, it is on the heavier side at over 14 pounds, which might make installation a bit challenging for some users. The price point may also be higher than simpler filters, but the advanced features and ease of maintenance could justify the cost for serious aquarium enthusiasts. The Fluval FX2 is well-suited for those who seek a reliable, high-performance filtration system with convenient features for easier maintenance.

Rating
10.0
Chosen by1,266
Filter Type
Flow Rate
Filtration Stages

Most important from
5685 reviews

Filter Type
This filter handles everything for large tanks, eliminating the need for additional filters.
Flow Rate
The adjustable outtake ensures a strong but gentle water flow, suitable even for delicate fish like Discus.
Filtration Stages
Highly efficient, clearing water cloudiness overnight and leaving the tank crystal clear.
Maintenance
Maintenance is straightforward, and the filter's large capacity makes it a great buy for serious aquarium enthusiasts.
Noise Level
The filter operates with an almost silent hum, making it a quiet option for any aquarium setup.
Size and Compatibility
Compared to older models, the FX2 has improved features like better clamps and leak prevention.
#2

Fluval 307 Perfomance Canister Filter - for Aquariums Up to 70 Gallons - Aquarium Canister Filter

Rating
10.0
Filter Type
Flow Rate
Filtration Stages

Most important from
8943 reviews

Filter Type
The Fluval 307 is quiet and efficient, keeping water crystal clear even in an overstocked tank.
Flow Rate
Flow control feature is useful for managing water changes and feeding times.
Filtration Stages
Efficient in clearing even the smallest particles and easy to clean.
Maintenance
Easy to clean and maintain, keeping tanks crystal-clear effortlessly.
Noise Level
The Fluval 307 is quiet and efficient, keeping water crystal clear even in an overstocked tank.
Size and Compatibility
Compact size doesn't take up much space and fits well in various setups.

The Fluval 307 Performance Canister Filter is designed to cater to aquarists looking for an efficient and quiet filtration system for tanks up to 70 gallons. One of its standout features is the eTEC technology, which ensures powerful, consistent pump performance while being energy-efficient—comparable to an LED light bulb. This makes it a great option for keeping your fish tank clean without driving up electricity costs.

The filter operates at a notably low noise level, making it ideal for home environments where peace is a priority. Many pet owners appreciate this feature, as it minimizes disruptions while still providing essential filtration. The EZ-Lift media baskets are another highlight, allowing for easy maintenance and quick access to the filter media, which is crucial for newcomers to aquarium keeping.

However, potential buyers should consider a few drawbacks. Some users report that the initial setup can be somewhat complicated, particularly for those who are new to canister filters. Additionally, while the size is compact, the physical dimensions (9.45 x 7.09 x 16.54 inches) may require some planning on where to place it in relation to your tank setup. In terms of compatibility, the Fluval 307 is versatile, but it is essential to ensure that your tank's design accommodates its intake and output tubing effectively. Regular cleaning is necessary to maintain performance, as is common with all canister filters.

Rating
10.0
Filter Type
Flow Rate
Filtration Stages

Most important from
8943 reviews

Filter Type
The Fluval 307 is quiet and efficient, keeping water crystal clear even in an overstocked tank.
Flow Rate
Flow control feature is useful for managing water changes and feeding times.
Filtration Stages
Efficient in clearing even the smallest particles and easy to clean.
Maintenance
Easy to clean and maintain, keeping tanks crystal-clear effortlessly.
Noise Level
The Fluval 307 is quiet and efficient, keeping water crystal clear even in an overstocked tank.
Size and Compatibility
Compact size doesn't take up much space and fits well in various setups.
#3

Fluval 407 Perfomance Canister Filter - for Aquariums Up to 100 Gallons - Aquarium Canister Filter

Rating
9.9
Filtration Stages
Maintenance
Size and Compatibility

Most important from
8943 reviews

Filtration Stages
Delivers excellent filtration with plenty of trays for multiple media options, ensuring clean and healthy water.
Maintenance
Setup is straightforward and simple when following instructions carefully, especially paying attention to the placement of the rubber ring to avoid leaks.
Size and Compatibility
The filter handles larger tanks better when choosing a size above your tank capacity, ensuring adequate filtration power.

The Fluval 407 Performance Canister Filter is designed for aquariums up to 100 gallons, making it well-suited for a 55-gallon fish tank. It uses a canister filter type known for effective multi-stage filtration and comes with multiple filtration media, including bio-foam and carbon, to keep the water clean and healthy. Its flow rate is strong enough to maintain good water circulation, ensuring your fish have a healthy environment.

One of its standout features is the ultra-quiet operation thanks to Fluval’s eTEC technology, making it less disruptive compared to many other filters. The pump is powerful yet energy-efficient, using about as much power as a small LED bulb. Maintenance is fairly convenient with EZ-Lift media baskets that allow easy access and quick cleaning, which should be done every 2-4 weeks depending on your tank conditions. The size of the unit is fairly compact for a powerful canister filter, but it might still need some space near your tank for installation. It includes all necessary hoses and connectors to fit most standard aquarium setups.

While some users might find the initial setup a bit involved, following the instructions makes it manageable. The Fluval 407 provides reliable filtration, quiet performance, and ease of maintenance, making it a solid choice for fish owners who want a peaceful and clean aquarium environment.

Rating
9.9
Filtration Stages
Maintenance
Size and Compatibility

Most important from
8943 reviews

Filtration Stages
Delivers excellent filtration with plenty of trays for multiple media options, ensuring clean and healthy water.
Maintenance
Setup is straightforward and simple when following instructions carefully, especially paying attention to the placement of the rubber ring to avoid leaks.
Size and Compatibility
The filter handles larger tanks better when choosing a size above your tank capacity, ensuring adequate filtration power.

Buying Guide for the Best 55 Gal Fish Tank Filter

Choosing the right filter for your 55-gallon fish tank is crucial for maintaining a healthy environment for your aquatic pets. A good filter will keep the water clean, remove harmful toxins, and ensure proper oxygenation. When selecting a filter, consider the type of fish you have, the tank's bioload, and your maintenance preferences. Here are some key specifications to help you make an informed decision.
Filter TypeThe filter type determines how the water is cleaned. Common types include hang-on-back (HOB), canister, sponge, and internal filters. HOB filters are easy to install and maintain, making them great for beginners. Canister filters offer superior filtration and are ideal for heavily stocked tanks. Sponge filters are gentle and suitable for tanks with small or delicate fish. Internal filters are compact and good for smaller setups. Choose a filter type based on your tank's needs and your comfort with maintenance.
Flow RateFlow rate, measured in gallons per hour (GPH), indicates how much water the filter can process. A higher flow rate means more water is filtered, which is essential for larger tanks. For a 55-gallon tank, aim for a filter with a flow rate of at least 220 GPH (4 times the tank volume). If you have a heavily stocked tank or messy fish, consider a higher flow rate. Ensure the flow rate is appropriate for your fish species, as some fish prefer gentle currents while others thrive in stronger flows.
Filtration StagesFiltration stages refer to the different processes the filter uses to clean the water. There are three main types: mechanical, biological, and chemical. Mechanical filtration removes debris, biological filtration breaks down harmful ammonia and nitrites, and chemical filtration removes toxins and odors. A good filter should offer all three stages for comprehensive water purification. Consider your tank's bioload and the specific needs of your fish when evaluating the filtration stages.
MaintenanceMaintenance involves cleaning and replacing filter media. Some filters are easier to maintain than others. HOB and sponge filters are generally simple to clean, while canister filters may require more effort. Consider how much time and effort you are willing to invest in maintenance. Regular maintenance is crucial for keeping the filter effective and ensuring a healthy tank environment.
Noise LevelNoise level is an important consideration, especially if your tank is in a living area or bedroom. Some filters operate quietly, while others can be quite loud. Read reviews and product descriptions to gauge the noise level. If noise is a concern, look for filters specifically designed to operate quietly. Your comfort and the well-being of your fish can be affected by the noise level, so choose accordingly.
Size and CompatibilityThe size of the filter should be compatible with your tank setup. Ensure the filter fits comfortably in or on your tank without obstructing other equipment or decorations. Compatibility with your tank's dimensions and design is crucial for optimal performance. Measure your tank and check the filter's dimensions before purchasing. A well-fitting filter will be more efficient and easier to maintain.

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