A 100 gallon tank is an ideal choice for simulating ocean life. However, to maintain the healthiest ecosystem, the right filter is indispensable.
Currently on the market there are many types of filters and they all come from many different manufacturers. That variety itself can make it difficult to choose the best filter for 100 gallon fish tank.
If you choose a filter that is too large or has too small capacity, the environment inside the 100 gallon tank will not be in the best condition.
That is why we have prepared the best 100 gallon aquarium filter list below so that you can avoid false investments.
- Top 10 Best 100 Gallon Aquarium Filter Review 2021
- #1 Fluval External Filter 100 Gallon
- #2 Marineland Magniflow Canister Filter 100 Gallon
- #3 Fluval FX4 Canister Filter 100 Gallon-250 Gallon
- #4 Hydor Professional External Canister Filter 100 Gallon
- #5 Lee’s Triple-Flow Corner Filter 100 Gallon
- #6 Aqua Clear Fish Tank Filter 100 Gallon-110 Gallon
- #7 AE-SHOP KZKR Aquarium Filter 100 Gallon
- #8 Penn Plax Cascade Canister Aquarium Filter 100 Gallon
- #9 Polar Aurora External Canister Filter 100 Gallon-200 Gallon
- #10 SunSun Pro Canister Filter Kit 100 Gallon
Top 10 Best 100 Gallon Aquarium Filter Review 2021
#1 Fluval External Filter 100 Gallon
This external filter from Fluval is a quality, easy-to-use filter that’s suitable for your 100 gallon aquarium. It is a beginner-friendly filter and you can rest assured with its filtering efficiency.
This filter has a flow rate of 340 GPH, making it the fastest and cleanest to filter all the water in a 100 gallon tank. Its engine is powerful, durable and makes no noise, so you can put it in any space.
In particular, this filter also has an anti-clogging inlet capable of preventing debris from entering. You also don’t need to worry about the risk of this filter leaking.
This filter is also appreciated by many customers for its high quality material and does not take much effort to maintain.
#2 Marineland Magniflow Canister Filter 100 Gallon
This is a canister filter that can effectively work for 100 gallons of freshwater and salt water. It is also a perfect filter for those looking for a good look at a filter.
This filter has a flow rate of 360 GPH, which rapidly filters and removes debris and other contaminants in a 100 gallon tank. It performs several stages of filtration and ensures that all water passes through these 3 filtration media. The water in a 100 gallon tank will quickly become crystal clear.
Besides, this filter has a convenient design so that you can maintain and clean the filter media easily.
#3 Fluval FX4 Canister Filter 100 Gallon-250 Gallon
The Fluval FX4 Canister Filter is a premium filter with unmatched performance. If you like smart and convenient filters for your 100 gallon tank, this is the perfect choice.
This filter performs 5 stages of filtration, helping all the water in the tank to be cleaned in the most optimal way. Filter media are carefully selected and easy to clean. Water will flow through these filtration media in a cycle.
In particular, this filter can automatically release the gas when trapped, so you do not need to resort to manual measures. It also comes with many other add-ons.
However it is not a budget option.
#4 Hydor Professional External Canister Filter 100 Gallon
This is a professional filter that any 100 gallon tank should have. This filter has a large enough filter chamber and is well designed so that the water is filtered smoothly in the circulation.
This filter comes with a user-friendliness. You won’t have any trouble setting up or using it. This filter has a self-priming button that automatically prims when you press the button. It will be ready for action.
This filter also does not make much noise when operating. The telescopic intake tubes are also a notable plus of the product.
#5 Lee’s Triple-Flow Corner Filter 100 Gallon
While external / canister filters are always the best and most suitable choice for a 100 gallon tank, we still want to expand the selection for you. This corner filter is one of the best quality filters and has many properties suitable for a 100 gallon tank.
This filter measures 4.5 x 4.5 x 6.2 inches so it doesn’t take up much space in a 100 gallon tank and you can easily cover it with decorations. This filter weighs 6.4 ounces, so you can rest assured it won’t get washed away with the water.
It is also very easy to use and set up. You also do not have to spend much time and effort on maintenance and cleaning.
#6 Aqua Clear Fish Tank Filter 100 Gallon-110 Gallon
This hang on back filter from Aqua Clear is a powerful filter that we’d recommend to you. This is a rare hang on back filter that can take care of outstanding filtration performance in a 100 gallon tank.
As for the hang on back filter, you may not have to dedicate much of the space inside or outside the aquarium to it. You just need to hang it on the tank easily with no complicated setup required.
It measures 7.1 x 13.9 x 9.1 inches and weighs only 4.2 pounds so it shouldn’t hurt the tank.
This filter performs three stages of filtration, and an extremely large filter chamber can accommodate a wide variety of filtration media. You can also add filter media if desired. It also doesn’t make it difficult to replace or clean.
#7 AE-SHOP KZKR Aquarium Filter 100 Gallon
This is the most uniquely designed filter on this list and it is also an ideal filter for a 100 gallon tank. It is also a filter that is appreciated for its convenience and user-friendly design.
You can quickly access and replace filter media in just a few minutes. You can even use any filter of your choice with this filter.
This filter also doesn’t take much effort to set up. It also comes with an aquarium pump.
#8 Penn Plax Cascade Canister Aquarium Filter 100 Gallon
The products from Penn Plax always make us happy and this filter is no exception. This filter has a long service life, durable and rugged performance to match a 100 gallon tank.
This filter has a flow rate of 265 GPH. It performs several stages of filtration with available filtration media. In addition, it also comes with valves that rotate 360 degrees, which allows you to easily adjust the flow and angle accordingly.
The inbuilt spray bar and self-priming system is another big plus of the filter.
#9 Polar Aurora External Canister Filter 100 Gallon-200 Gallon
The Polar Aurora External Canister Filter is a cheap option for you when looking for a filter that will work well with your 100 gallon tank. This filter is also appreciated for its filtration performance and ease of maintenance.
This filter has an astounding flow rate of 575 GPH, so all the water in the 100 gallon tank will be filtered more than once. It performs three types of filtration: mechanical filtration, biological filtration and chemical filtration.
Specifically, this filter can destroy spores of parasites, bacteria and algae with 9-Watt UV sterilizer.
You can also easily maintain filter media when they are in separate trays. This filter is also completely leak-free.
#10 SunSun Pro Canister Filter Kit 100 Gallon
This canister filter from SunSun is also a perfect choice for beginners. For a 100-gallon tank this filter’s 370-gallon flow rate is very suitable. It will quickly turn the water in the tank to become cleaner and healthier.
This filtration kit performs 4 filtration stages with available quality media. It also has a self-priming button so you don’t have to manually take action upon setup.
This filter does not make much noise in operation. It doesn’t take up a lot of space and is easy to place under a shelf or under an aquarium.