Can I Use Undergravel Filter With Canister Filter?

Undergravel filters are a kind of aquarium filtration placed below the substrate (or underneath the gravel). Utilizing them can eliminate any need to have a heavy filter that hangs in the rear of the tank.

There’s a bit of controversy over undergravel filtering, for various reasons.

Even though these filters will eliminate the filthy maintenance routine that requires frequent cleansing of the filters, once they’re in the tank as well as the substrate and decor are in place, they will not be able to get the filters.

In the absence of proper maintenance, undergravel filters could cause serious issues for aquarists.

Can I Use Undergravel Filter With Canister Filter?

Yes, the undergravel filter with canister filter combo is a favorite choice for aquarists in regards to aquarium filtering. This setup uses biological and mechanical methods of filtration to ensure your aquarium is clean and healthy.

The filter in the undergravel pulls water from the substrate which is where beneficial bacteria break down substances that are deemed waste.

In addition, the canister filter offers additional mechanical filtration by capturing dirt and impurities inside its media. When combined, these filters make a sturdy system that can help maintain the stability and health of your aquatic habitat for your fish as well as plants.

To ensure maximum performance, it’s essential to maintain and clean each filter according to its specifications.

If properly maintained the under-gravel filter and canister filter combo will offer years of reliable filtering for your aquarium.

This article will provide an in-depth guideline about the advantages of an under-gravel filter and how to pick the most suitable one for your tank.

Undergravel filters are attached to the bottom of the pool’s filter system. The water is then pumped through the filter, cleaned, and then returned to the pool.

This usually happens with an automatic setting which means that you don’t have to alter it manually. However, under gravel filters may be manually adjusted by adjusting the flow of water.

Best Undergravel Filter For Aquarium

Last update on 2024-07-11 / Affiliate links / Images from Amazon Product Advertising API

Best Canister Filter For Aquarium

Last update on 2024-07-11 / Affiliate links / Images from Amazon Product Advertising API

Undergravel Filter With Canister Filter

Undergravel Filter With Canister Filter

The undergravel filter can be a very effective filtering system for water that allows you to clean your aquarium without purchasing the entire tank. The name itself suggests that this filter comes with the gravel part hanging beneath the basket of the pump.

The benefits of Undergravel Filter: Softening using an undergravel filter is superior to other filters and has numerous advantages. (Note that we do not sell these items or earn any money from them.)

Near the tank. With an under-gravel filter, you’re close enough to control the disease as well as maintain the water quality in your tank or even administer the medication directly into the aquarium.

Under Gravel Filter System. Like all filters, this one uses the use of a cup for collecting particles that are trapped on their elastic membrane. This is sometimes referred to as a debris canister.

Since it comes with a flap cover as well as two locking arms that have pins that face down the filter is able to capture large amounts of particles in water.

In contrast to other filters that are available, this filter is placed on top of the canister filter using blocks of plastic.

This feature makes cleaning easier to access when it is needed, as you don’t have to stand in front of your sump for the entire day or employ more chemicals than traditional filters.

The cup is empty and then poured into an open-top tray where the runoff is able to be sucked up for on-demand cleaning.

You could also add a small amount of activated carbon, or even beads to eliminate chemical and biological impurities from water (note that you don’t need testing kits for this but do look over your test strips prior to adding them, if they have any).

Pros Feel like natural sand.

Mechnism Of Undergravel Filter

Undergravel filter reduces Pumping Efficiency. If your body was collecting similar amounts of fluid from pools, you’d lose more water per day than fluids due to gravity not transporting all the water toward the depths.

Use undergravel filtration because It’s cheaper and More Reliable Over Time! The majority of larger canister filters do an average job of getting rid of dirt and particles as continuous flow pumps usually have a much lower performance when it comes to small particles.

In addition, large filters consume more power and will heat up more quickly than smaller filters. In the same way, continuous flow pumps are more to purchase, yet they generate lesser horsepower throughout the entire process. This means that they consume even more energy.

It isn’t necessary to purify the entire water to ensure that fish are adults at an age. Everyone has their own opinions on the subject, and a variety of sources provide good explanations.

This is a way for bacteria that flourish within the column of water since there are no standards for dealing with filters that are either filters or not, even the filters are able to completely eliminate them.

It will not fulfill the goal that is embraced by aquarists, even though it helps filter fish without taking away the food supply (like cysts) which helps keep the fish population that is fed free at a level that is acceptable to the size of the fish.

Benefits Of Undergravel Filter

Undergravel filters have many benefits to aquariums. First, they’re an effective and economical method of maintaining an aquatic ecosystem that is healthy.

Through this layer of dirt, gravel filters aid in removing harmful toxins and particles in the tanks, thus improving the water quality for fish as well as other aquatic species.

Furthermore, undergravel filters create biological filtration by providing the perfect surface for beneficial bacteria to flourish.

This bacteria aids in breaking up waste and transforming harmful substances into less harmful ones.

Additionally, under-gravel filtering can add aesthetic value to your aquarium as they are small and don’t consume valuable space within the tank.

Overall, an under-gravel filtration system is a good option if you are looking to ensure an aquatic ecosystem that is healthy and flourishing. ecosystem.

You have 100 gallons of water, which requires one gallon a day to feed the inhabitants of your tank. In the end, you will save 30 to 40 cents per month on the venting part alone.

This is approximately $6 per year in savings on maintenance of the filter. It is easily paid for by a single-portion deductive DIY under-gravel filtration option for home systems if you do it correctly which brings us back to our initial question.

Drawbacks Of Undergravel Filter

The typical freshwater aquarium filter is responsible for the breaking down of the cysts that are in the gravel. They are referred to as Ammonia Scavengers.

They keep the ammonia concentration at or below 30 ppm. The pH is kept even alkalized, which means that buffer zones on the substrate are carefully layered with water changes. It is possible to have 25-40% ammonia.

The carbonate hardness is 80 or some other factor near the tank’s central point by indicating which is effective under specific conditions. Find out exactly who your tank’s dweller is.

How Undergravel Filters Work

Water is a valuable resource, therefore taking good maintenance of it is crucial. One method to take care of this is to install an under-gravel and canister filter.

The canister filter will eliminate this material, thereby removing the smell and buildup of bacteria. As time passes, the under-gravel filter will require to be replaced, but it’s an easy task that you can do by yourself.

Apart from improving the water quality The setup could also reduce noise at your house. And keep your garden looking great.

If sediment and dirt enter your system of water The under-gravel filter will capture this material and block it from entering the plumbing system.

If you’re looking to enhance the quality of water you drink or to keep your garden looking beautiful, the under-gravel filters are an excellent option.

Main Issues With Undergravel Filters

While undergravel filters can be effective and economical for keeping your aquarium healthy There are a few major concerns to take into consideration. One of the main concerns is that they may be difficult to maintain and clean in the long run.

When debris accumulates inside filters, they may get clogged and are less efficient in removing contaminants from the water. Furthermore, under-gravel filters might not be appropriate for all aquarium setups, for instance, those with living plants or heavy layering of the substrate.

It is essential to take into account all the benefits and drawbacks prior to making a decision on whether an undergravel filter is the right choice for your needs in an aquarium. Regular maintenance and cleaning can assist in tackling some of these problems and help keep your aquarium healthy.

How To Maintain An Undergravel Filter

Can You Use Undergravel Filter With Canister Filter

Maintaining an undergravel tank is a simple and efficient method to keep your aquarium healthy and clean for the fish.

Here are some tips to ensure the health of your under-gravel filter.

  • Clean the substrate regularly. Over time, dust and waste may build up in the substrate, blocking the filter.
  • Utilize a gravel vacuum to take any leftover residue off the substrate.
  • Clean the air and lift tube stones. Air stones and lift boxes are prone to get blocked with particles, which can reduce efficiency. Take them out of the tank and wash them thoroughly prior to replacing them.
  • Refill filter cartridges when necessary. The cartridges that filter under gravel filters must be replaced every 4 to 6 weeks based on the size of your aquarium as well as the quantity of fish.
  • Check the quality of your water regularly. Being aware of the quality of your water can aid in identifying problems in your under-gravel filter in the early stages.
  • Check your water frequently using an instrument to check that the levels of ammonia, as well as nitrite, are acceptable. Nitrate levels are within acceptable levels for your pet fish.

If you follow these easy steps by following simple steps, you can keep your under-gravel filter functioning effectively and create an environment that is healthy for your fish.

Types of aquariums that work best to undergravel filtering

The following aquarium types are the most suitable for filters that are undergravel.

Hospital/Quarantine Tanks

The quarantine tanks and hospital tanks are only used for short periods and usually with minimal decor and no substrate. However, they could be a great option to install an undergravel filter with a bit of gravel.

They provide enough water filtration for only a few fish or invertebrates. They could also be made use of sponge inserts included with under gravel filters. Don’t use carbon-based Inserts inside quarantine tanks as they can remove any medication that is added to the water for treating the fish in quarantine.

Breeding Tanks

If the species you are planning to breed doesn’t have any particular prerequisites for substrates when it spawns using low-flow undergravel filters might be a suitable option.

Some fish breed through egg-scattering on the substrate. using coarse gravel or marbles on top of an ungravel-based filter plate could be a good option for filtering these tanks. Utilizing the sponge cartridges within the tubes of filtering can stop the fry from entering the tubes.

Small Tanks

Betta tanks and other smaller aquariums can be used with the undergravel filters. It can be combined using an air compressor and a stone to supply the water with a low flow rate for slower-moving fish like Bettas. It’s also not too difficult to clean the gravel out of small tanks.


Can you use undergravel filter with a canister filter?

If you do not regularly clean your substrate, the debris will be pushed into the filter plate and the plate becomes an ideal location for muck to collect. One way to clean the filter plate undergravel is to fix an inflow tube from a filter and an uplift tube.

Why are canister filters better?

Canister filters are superior in terms of mechanical chemical, biological, and filters for larger aquariums and aquariums with lots of fish. The body, or “canister” portion of the filter is considerably bigger than the majority of power filters. Just imagine the amount of media filters can hold!

Do you really need a canister filter?

Canister filters are an excellent option for freshwater aquariums as well as saltwater fish-only tanks that are larger than 50 Gallons. They can be a hassle however they’ll keep your water sparkling. For reef aquariums, you’d be better off using the use of a protein skimmer. We strongly recommend drilling through the bottom of your tank.

Why does no one use undergravel filters?

The reason for not using under-gravel filters is that as time passes the gravel becomes filled with debris and flow rates decline which reduces filtration, and allows the accumulation of contaminants into the drinking water. thus reducing the water’s quality.

How effective are undergravel filters?

It also increases the surface area accessible to nitrifying bacteria. It also ensures that there is a continuous flow of aquarium water throughout the area that is colonized. The most well-known type that is a biological filter would be an under-gravel filter. It’s relatively cheap reliable and efficient.

Can I use a canister filter instead of a sump?

Saltwater tanks are able to be run using an outside canister filter however, anything more than 100 liters might require an additional filtration capacity. Aquariums with saltwater require a high flow of water and low levels of nutrients, and because of this, the sumps are usually considered to be the best choice for this purpose.


Can I Use Undergravel Filter With Canister Filter? The undergravel filter with canister filter is a combination of two filters: the under-gravel and the canister. Under-gravel filters aid in getting rid of silt and debris from the waters. It has a basket shape which allows it to be placed submersed within an aquarium.

The basket is used to store the cleaning media and has holes that let water flow into the canister. The canister is filled with activated carbon which removes dangerous chemicals from water, odors, and the sour taste.

Undergravel filters are vital for aquarium maintenance and maintaining them in good condition is essential. If you know the most common problems with under-gravel filters and the best ways to keep them in good condition to ensure an effective filter that can make your aquarium flourish. Keep an eye out for further information on the maintenance of your under-gravel filter!

Fluval FX6 High Performance Aquarium Filter, Canister Filter for Aquariums up to 400 Gal.
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  • Compact 21 in (53 cm) tall design - easily fits under most aquariums

Last update on 2024-07-11 / Affiliate links / Images from Amazon Product Advertising API

Dibyajyoti Bordoloi is the creator and author of, a third-generation experienced fish keeper and owner of a successful pet breeding farm. He is also a member of the Center for Wildlife Rehabilitation And Conservation (Assam), the Marine Aquarium Societies of North East India, and the Kaziranga Nature Conservancy of Assam.