The 6 Best Filter for 150 Gallon Fish Tank in 2023 (Reviews and Buying Guide)

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Fish aquariums enhance the beauty of your home with bright fishes, greenish water, and peaceful, bubbling sound. You can spend hours watching your pets playing, and it will soothe your mind. To keep your 150-gallon fish tank fresh and ensure a healthy environment for residents, you will need a strong and robust filter with unique features.

There are so many options for large filters that you may get confused about which is the best filter. We will review some of the best filter for 150 gallon fish tank to ease your shopping. In the end, you will be an expert in everything there is to know about tank filters.


Best pick

Fluval Fx6 Aquarium Canister Filter is one of the best filters of 2021, with all the necessary features such as self-priming, multi-stage filtration, noise-free operation, and many others. The filter has a 21-inch tall, lean body that makes it perfect to fit inside the tank without taking too much space. Its outstanding characteristics keep the fishes and the tank clean and clear than ever. It also maintains strong water flow and is energy efficient. Being the world’s first 3-stage filter, it has made its way to the top of our list.


Budget pick

Marineland C-Series Multi-Stage Canister Filter is most suitable for you if you are on a budget. It comes with all the necessary components at a reasonable price. Despite all the intricate parts it comprises, it is convenient to install and use. With this product, you will not compromise on anything because it has all the essential features; the 3-step filtration with no bypass system secures fresh habitat for your fishes. Moreover, the parts do not require replacement unless they are damaged. These features make it the best budget filter compare to all others.


Top 6 Best Filters for 150 Gallon Fish Tank Review


1. Fluval Fx6 Aquarium Canister Filter

Fluval Fx6 Aquarium Canister Filter
  • Multi-stage filter pumps out 925 US Gal (3,500 L) of water per hour, Smart Pump advanced microchip technology...
  • Self-starting – just add water, plug in and Smart Pump will take over, trapped air auto-evacuated every 12 hours to...


If you own a large fish tank, you will know that maintaining a 150-gallon requires a lot of work, and keeping the tank clean all the time is much more challenging. A giant aquarium means a large number of inhabitants contributing to the waste in the tank. To keep the tank dirt-free, you will need the best filter and this product is regarded as one of the best filter for 150 gallon fish tank.

The filter has a multi-stage filtration system that pumps over three thousand litres of water per hour, ensuring a healthy environment for the fishes. Its advance microchip technology secures the performance and maximum efficiency of the pump. It also has a self-starting system that enables you to leave the machine on its own when you are not around. Moreover, rubberized feet prevent unwanted noises. But if you want pin-drop silence, you may lower the water flow rate, as the maximum flow can cause trickling sound.

Like most canister filters, it comprises filter media that carry out mechanical, biological and chemical filtration to eliminate ammonia, nitrites, odour, and discolourations. Nozzle with multiple directions helps you to adjust the water flow. Its comparatively smaller body does not take much space inside the tank, unlike other canister filters.



  • High flow rate
  • Easy water change feature
  • The smaller design fits under most tanks.
  • Removable media baskets reduce water bypass.
  • Starts and operates automatically



  • Tricky set-up
  • May cause dripping sound


2. Marineland CSeries MultiStage Canister Filter

Marineland C-Series Multi-Stage Canister Filter
  • 3-STAGE FILTRATION Water flows through media layers to filter water and ensure a clean aquatic environment
  • FAST SETUP Water-tight canister lid lifts up for easy removal


This one is a best filter for 150 gallon fish tank tank with its outstanding characteristics. It works for both freshwater and saltwater fishes, so you do not have to worry about your fish types. Despite having complex features, it is easy to install and lowers water flow rate when it needs maintenance. Although people may avoid canister filters as they hinder the tank’s attraction, this filter is small enough to keep it hidden from the view.

As a large tank enthusiast, you are likely to look for a filter that is powerful enough to keep the water crystal clear. This filter does the work in three simple steps: mechanical, chemical, and biological filtration. This product has bio-filter balls that ensure a larger surface area for the beneficial bacteria to grow, thus removes more ammonia and nitrites compared to other filters. Furthermore, replaceable media filters help in the mechanical and chemical filtration that removes dirt, odours, and impurities.

The filter lacks a bypass option which guarantees a stress-free environment for your aquatic animals. One of the features of this product is you do not have to replace the ceramic rings and bio-balls unless they are damaged. The device is easy to dismantle, and media trays have collapsible handles that help to bring them out.



  • Removable canister lids
  • Designed for all fish communities
  • Unique biological filtration
  • Easy to set-up and maintain
  • No spills or air pockets



  • Polishing pads require monthly replacements.
  • Causes loud noises


3. Jebo 838 External Canister Filter

Jebo 838 External Canister Filter
  • 4 stage filtration
  • Pump Output 315 G/H (1,200 LPH)


Are you looking for a filter with moderate water flow? Then you will need this product which is one of the best filter for 150 gallon fish tank of 2021 with a rate of 1200LPH. Unlike other canister filters, it has a small stature, weighing only about 13 pounds, and it can be fitted into the deepest aquariums. Also, you will come to love it as it rarely produces unwanted noises while operating.

Compare to other filters, it filters the water in four different stages, thus making it an efficient filtration system. The safety taps allow the flow rate to be adjusted for delicate fishes. Furthermore, it comprises of a fantastic anti-airlock system that prevents interruptions in the water flow, ensuring maximum filtration. The filter is designed to operate efficiently in marine, tropical, and planted aquariums. Although it pumps water in a moderate flow, it does not fail to keep the tank clean and stress-free.

The wide variety of filter media provide dirt-free water by biologically purifying the waster products of fishes. All the materials are attached with filter, no need to buy extra parts. The media baskets can be easily accessed for replacements and cleaning.  It is not a high-maintenance filter, and it will keep you as relaxed as the fishes living in the tank.



  • Four-stage filtration system
  • Includes all necessary hoses and parts
  • Adjustable inlet-tube
  • External bio-chemical filter
  • Easy access baskets



  • Water leakage
  • Not suitable for a large population


4. Fluval G6 External Filter

Fluval G6 External Filter
  • Powerful filtration system for use in both freshwater and marine environments
  • Easy to use; One button self-priming technology. Mechanical Area (foam)- 386 (980


If you are a long time fish tank owner, you will know that the essential feature in a filter is the filtration process. With the effective filtration system, this filter is considered one of the best filter for 150 gallon fish tank of 2021 by thousands of customers. Although it has a compact shape that helps it to fit it under any cabinet, there is enough space to customize it with filter media.

Its filtration system comprises of three-stages. Firstly, mechanical filtration is carried out using a ribbed pre-filtration cartridge that traps debris. Secondly, chemical filtration uses various combinations of filter media to eliminate odour and discolourations. And lastly, filter baskets carry out biological filtration using Fluval G-Nodes, which host billions of beneficial bacteria to purify the water.

There is a digital front panel in front of the filter that shows when it needs maintenance. The priming button that restarts the water flow automatically when the filter is turned on or restarted. The inlet tube ensures optimal water flow to the filter, and diffuser tubes help to distribute the water inside the tank. Furthermore, silicone seals, locking levers and double-walled housing ensure reliability, efficiency, and quiet operation.



  • Displays maintenance issues in the panel
  • Three-step filtration
  • Strong water flow rate
  • Moderate build
  • Self-starting



  • Little noisy operation
  • Suitable for only saltwater tank


5. Fluval External Filter

Fluval External Filter
  • Multi-stage filtration for healthy fresh & saltwater aquariums
  • Suitable for aquariums up to 70 gallons


Filters are essential for a large aquarium as more fish means more waste and dirt. It reduces the effort in keeping the tank clean and offers an enjoyable environment for fishes. Ensuring stress-free habitat for your pets all the time is next to impossible, but the filter does your work with simple maintenance from time to time. This is one such filter that makes your life easy with a multi-stage filtration system and enhanced filtration process.

Like other filters, it has multiple removable filtration baskets that are packed with the necessary media for mechanical, chemical, and biological filtration. This filtration process eliminates dirt, waste products, toxic chemicals, pungent smells, and impurities.  The filter provides various other benefits that guarantee better filtration, easy maintenance, and quieter operation.

The product has a maximum head height of almost six feet, making it the best filter for 150 gallon fish tank. You can use this filter for both saltwater and freshwater aquariums. It is designed with a sound dampening impeller for a noise-free operation that lets you sleep peacefully. Moreover, it is equipped with clog-proof intake strainer and a dual-layer foam screen to prevent water spills, so no more extra mess for you.



  • Easy to change media
  • Advanced motor technology
  • Minimum vibration and noises
  • Self-priming
  • Stops water flow without disconnecting hoses



  • Micro-bubbles may form
  • Need frequent media replacements


6. Flexzion Aquarium Canister Filter

Flexzion Aquarium Canister Filter
  • Suitable for fish tanks up to 150 gallons. Maximum flow rate: 525GPH
  • 3-stage media trays for your choice of filtration media. Includes spray bar to adjust the output flow from the filter...


Fishes living in the tank gives out waste products, and dirt particles accumulate over time from fish foods. These waste products later convert into toxic ammonia and nitrite, which is harmful to your fish. But with the best filter, you can always secure a clean and clear tank that your fish can swim into. Canister filters are hugely popular because of their filtration methods. In this particular product, water is removed from the tank through a tube and forced into one or more filter media to eliminate waste and toxins.

Unlike other machines, a spray bar can be utilized in the filter to reduce evaporation and modulate water current. There is a primer button to pump air out of the filter before use. Moreover, canister filters are considered the best filter for 150 gallon fish tank.

With this filter, you will not encounter any leakage as it has a glass cover to prevent any spills. Furthermore, it operates with almost no bubbling noise, making it best suited for home, office, and even bedrooms. The machine works for overall cleanliness and health of the aquarium. These useful properties make it one of the best filters of 2021.



  • Suitable for medium and large aquariums
  • Spray bar to adjust the water flow.
  • Best for freshwater and marine tanks
  • Convenient primer to push air out
  • Smooth and quiet filtration



  • Do not include all the necessary parts.
  • High-maintenance



Buying guide for the best filter for 150 gallon tank:



The motors are essential to pump the water into the filter to initialize the filtration process. And for a large tank, you will need an machine that pumps at least 750GPH of water. Moreover, it is better to choose a low-maintenance motor because high-maintenance means that you will need to dismantle the unit often. And may not be suitable for the filter’s durability.


Fish population

The filter you need depends on the number of residents in the tank. If your tank is heavily stocked, there will be more waste to clean. For this, you will need a powerful filter. Also, ensure that you do not cross the fish limit in your tank or store fishes that feed on algae and keep the aquarium clean. Thus, choose your filter according to the aquatic community.



Filter media carry out mechanical, chemical, and biological filtration. So, you have to choose a filter that has enough space to accommodate as much media as needed. And as canister filters are usually large, you can customize it with any number of media you need.


Compact build

There are various types of canister filters; one such is external canister filer, they are suitable if you want to keep them out of the view.  Unlike all other types of filters, these go under the aquarium and connected with a tube. Some canister filters are fitted inside the tank, it does not necessarily hinder the view, but you may not like it.


Quiet operation and leaks

As canister filters are usually submerged, they make relatively less noise. Also, if you are shopping from a fish store, ask the salesman to turn it on so you can check it. Water leakage cannot be examined in-store or online. But you can confirm it with the seller that if the filter has any leakage problem it can be replaced or they will provide service.



The best filter for 150 gallon fish tank can have some extra features that make it more efficient, but you may not be able to afford it. You can take the time to analyze different prices and filters before deciding on a budget. Online stores are an excellent place to start looking and quickly checking out a variety of filters. Search for something that has several positive customer reviews.


Frequently Asked Questions

1. What is the benefit of canister filters over others?

Canister filters are more efficient compared to others which are crucial for aquariums with a large population. Also, unlike other filters, they are not there in plain sight.


2. Why is the canister leaking?

The filter may leak because of faulty seal or pump losing pressure. It is better to have a replacement if you do not have a warranty.


3. How to prevent air bubbles inside the tank?

Heat the fresh water before adding it so that it can be closer to the tank’s temperature.


4. How to clean the canister tubes?

Carefully remove the hoses when the filter is not running, and submerge them in warm water for about thirty minutes. This loosens up any dirt inside of the tubes, making them easier to clean.


5. How often should I clean my filter?

Canister filters should be cleaned every three to four months for better performance.


6. How many fish can I keep inside a 150-gallon tank?

There is a rule of one fish per gallon so that you can keep around 100-150 fishes in your tank. But if you want to have cichlids or platys, you should ensure that the filter has an option to add additional filter cartridges.


7. Can I attach an inline heater?

The inline heater can be attached to any canister filters through output flow tubes.



Large aquariums need filter more than small ones, so if you have a 150-gallon fish tank, you will require a powerful filter. You can choose from our list of best filter for 150 gallon fish tank or any different model, but keep in mind the necessary features that must be included in your machine.

The best filter will provide a safe and sound home for your underwater friends. So choose your filter wisely, to narrow down the options, check out the prices and warranty of the filters.


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