Top products you should consider
Finding a good canister filter for 100-gallon aquariums can be hard work, especially with so many new models out there. Your time is valuable, and you probably have more important things to do than to spend days doing research to find a model that suits your needs. Because we understand that this is a time-consuming process, we have taken the responsibility to do that research for you. After carefully analyzing the best filters the market has to offer, Dr. Fox recommends that you get the Hydor Professional 600 External Filter C02501. In the unfortunate event that it becomes unavailable, you should try the Marineland Magniflow ML90751 instead.
Dr. Fox Recommends – Comparison & Yearly Report
Hydor Professional 600 External Filter C02501 (B00CRIDEJM)
The Hydor Professional 600 is the best canister filter for 100 gallon aquarium from our list. This is a professional-grade filter that can pump up to 345 gallons per hour and can handle any aquariums of 90 up to 160 gallons.
Despite its professional design, this filter is extremely easy to use, thanks to the integrated priming system which starts working after a simple push of a button located on the filter head. You can also use the telescopic intake to select the level you want the filter to take water from. The motor benefits from ceramic shafts which not only guarantees a longer service life but also reduces noise.
The versatile Hydor Professional 600 has a large filtering chamber which will ensure that all the water is filtered for mechanical, chemical or biological impurities so that what’s left is sparkly-clean water that’s perfect for your fish or other aquatic species.
Marineland Magniflow ML90751 (B010PLGI5O)
Suitable for both marine and freshwater aquariums, the Marineland Magniflow ML90751 is a fast and efficient multi-stage filter that will provide your fish with a healthy environment while also lowering the maintenance requirement of your tank.
With a flow rate capacity of up to 360 gallons per hour, this model uses the latest multi-stage system to push water directly through media layers to provide your aquarium with the biological, chemical and mechanical filtration you can count on. The carbon bag contains premium-grade Black Diamond activated carbon which cleans water of impurities, while the ceramic rings and bio-ball filters have large contact areas to promote the growth of bacteria which capture and break down ammonia and nitrates from the water.
Maintenance is as easy as it gets, thanks to the valve-block quick release. You can immediately cut the water flow and gain access to the filter chamber so that you can easily clean and replace filter media.
Penn Plax Cascade Black 1000 Elite (B01MRWPB99)
Another good canister filter for sale is the Penn Plax Cascade Black 1000 Elite. This high-performance aquarium filter boasts a 350 gph and two independent rotational valve taps that can be turned at a 360-degree angle. Combined with a high-grade rubber base and an anti-tip design, you don’t have to worry about finding a good spot for the filter – anywhere will do.
The Penn Plax Cascade Black 1000 Elite benefits from a multi-stage external filter system which works well on both freshwater and saltwater aquariums. By using multiple media layers such as activated carbon, bio-foam and sponges, this model can deliver fast and efficient filtering that will leave your aquarium free of impurities and harmful chemicals.
This filter comes with all the features and accessories you need to start filtering the aquarium in 30 minutes, including start-up filters, input and output tubing and an easy-to-use button for priming.
SunSun 370GPH HW-303BPro (B00MH2NRIQ)
The SunSun HW-303BPro is a powerful canister filter with a flow rate of up to 370 gallons per hour that can handle any kind of aquarium of up to 100 gallons. Measuring just 10.5″ L X 10.5″ W X 16″ H, this model won’t take a lot of extra space. Thanks to the self-priming pump you don’t have to do siphoning manually, just let the filter do the job on its own and save time. You also get all the accessories you need, from hoses to filter pads.
This 4-stage filter uses a flexible filtering system to ensure that the water comes clear and sparkly-clean so that your fish and plants don’t just survive, but thrive in a healthy environment. This system is composed of 3 flexible media such as ceramic rings, bio-balls and premium activated carbon, as well as a built-in UV sterilizer which will help control both bacteria and algae spores.
100 Gallon Canister Filter and Sterilizer 172247608535 (B06W55JQ7M)
If you’re looking for an efficient 100-gallon canister filter, then this model is a great choice. Installing this filter requires no mechanical knowledge, just mount the included filter pads and hoses, and it’s ready to go. Thanks to the self-priming mechanism you only need to push a button, and the device handles all the rest. This external canister filter can pump up to an amazing 370 gallons of water per hour if needed, although you can adjust the flow rate according to specific needs.
This filter also comes with an incorporated UV filter which will kill not only harmful bacteria, but also unwanted algae spores, ensuring that your aquarium’s inhabitants live in a clean water and healthy environment. This UV filter will also save money on energy since it only needs 9 watts to work.
The package also includes flexible tubing, a draining tray cover, 3 draining trays, 3 fine cotton pads, flexible tubing as well as some extras.
Our Comprehensive Buying Guide
Because we know just how hard it can be to decide on an external canister water filter for your 100-gallon aquarium, we have done extensive research to provide you with top-tier products that provide the best quality/price ratio. After carefully comparing many popular models and reading what customers had to say about them in countless canister filter reviews, we have decided to write a short guide so that you don’t have to put the same amount of time and effort.
Here are some basic things you may want to learn about canister filters suited to aquariums of up to 100 gallons as well as a few aspects you may want to take into consideration before buying.
Canister filters explained
Contrary to hang-on filters, canister filters don’t take up space in the tank but are placed externally, the connection being made through intake and output tubing. A canister filter will take water from the tank through a tube and run it through a pressurized chamber. That chamber can contain various filter media. The best part about a canister filter compared to other types of filters is that water is forced directly through the media layers and not around them, providing for a much more efficient filtration.
However, you can’t just start up a canister filter, you need to prime it first. The good part is that most modern models come with self-priming systems which only require that you push a button and wait for up to 30 minutes before the filter is ready to use.
Make sure your model has a high enough flow rate
Since we’re talking about a 100-gallon aquarium, which is rather large, the flow rate is an extremely important aspect when deciding on a filter model. You want to make sure that the filter has a good enough flow capacity, otherwise, you’d need to manually replace 20 percent of the water in the tank every few weeks. A flow rate of over 300 gallons per hour would normally suffice since it would be able to filter 3 times the volume of a 100-gallon tank in just an hour. Just remember the fact that flow rate values are usually for clean filters and hoses, and you might want to go for a higher flow rate to make sure the device can still pump enough water even when you don’t have enough time to clean it.
A bit about filters
Contrary to hang-on filters, canister variants come with customizable filter media, which means you’re not stuck with the pre-made manufacturer design. You can add and replace activated carbon cartridges, bio-balls, ceramic rings and other types of filters. The more filter media a model has to offer, the better, especially when you can fully customize the setup and ensure that your aquarium gets the best filtration treatment possible.
Also make sure that you stack up on new filters from time to time, as dirty filters don’t just lower the performance of the device, but also run the risk of contaminating the water when they are filled with too many impurities and chemicals.