Six Basic Types Of Aquarium Filters

As you know, the aquarium, the choice to install a filtration system, is significant. Whether your aquarium is clean, and whether or not its organisms live well depends mostly on the filtration system. So choose an appropriate aquarium filter is a must-do. Here are the shares from our aquarium.

Understand overflow filter system for fish tanks

Firstly, an active filter is one that has the following filters: coarse, beautiful, and chemical filters. Fish tank filtration is one of the most useful aquarium filtration systems with all the above filters.

Aquarium Filters

The principle of operation of the overflow filter is that the water is pumped from the fish tank into the first compartment of the filter tank for rough filtration. It will pass through the 2nd or 3rd compartment for excellent filtration and to the next chamber for chemical filtration before reaching the bay. Finally, to pump the tank back.


Commonly used filter cotton to retain large contaminants in the water, such as fish feces, leftovers, and suspended residues in the water. As clean. You can use the rain filter to increase the efficiency of this section. Care should be taken to wash filter cotton regularly to avoid clogging of water that cannot flow, causing water to overflow.

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Refining is also known as a biofilter. This filter element contains filtering materials such as ceramic filter, ceramic filter, lava, scrap coral… They are materials with many holes. Small void is the habitat for microorganisms to decompose substances such as salts (NH4 +), (NH3), and types (NO3-), which are toxic substances excreted by fish without raw filtration. It is toxic to fish and makes the tank smell foul or fishy. You should add microorganisms by regularly adding probiotics to your aquarium every 1-2 months.

Chemical filtration

After going through the above two filtration sections, you need to have a compartment to remove the toxins for the aquarium with filtration materials such as Activated Carbon, Arsenic Filter Stone… to detoxify the water.

Six Basic Types Of Aquarium Filters

Type 1 – Internal Filter

Aquarium Filters

This type of filter is fixed inside the tank; it is usually divided into one compartment on the side or back of the lake as a filter.

Water will flow into the comb of the filter assembly (where the filter accessories are located), then flow through the pump compartment, and the pump will pump water back into the tank. 

Because the filter design fits neatly inside the aquarium, it is therefore very suitable for aquariums with screens and screens. Besides, the overflow filter in the lake also has the advantage of outstanding face filtration. Todays aquarium technician is getting higher and higher, so the bottom dust filter is also added.

Type 2 – Undergravel Filter – UGF

Aquarium Filters

This filter is suitable for aquariums, low cost, easy to use. But not ideal for growing aquatic plants. Because the working principle is Air Lift, it draws water through the substrate (filter media). This will make the floor spread and fly out.

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Type 3 – Filter under the lake (homemade)

A type of homemade filter placed under the lake. With the advantage of being able to follow the size and design you want and can contain many filter accessories.

The principle of operation of filtration under the lake is different from that of the external filter in that the water will be in contact with the air. One question arises, if the watertight filter in the pool does not overflow (flow) out of the house!

Aquarium Filters

To overcome and prevent overflow (flow) out, we must use the overflow control method to control the flow of water in and out to balance. This means that the water level of the lake is aligned with the amount of water in the lake. 

Due to the excellent design advantage and many filter accessories, it is very suitable for Arowana hobbyists. And if used for aquariums, at least users must know how to control the flow of water, Oxygen, and Co2 and understand the ecosystem in the aquarium.

  • Pros: Large filter compartment, many filter accessories
  • Cons: Without standard water will easily spill water on the floor when the pump is off.

Type 4 – Sponge Filter

This is a filtration system that uses filter media with a filter, which is a type of filter in the tank (because the primary filter is placed in the tank).

This sucking filter is used to filter dust particles that are floating in the water, fish waste. Suck is also the home of beneficial bacteria, but when we do cleaning, the bacteria will lose significantly because the surface properties of the rubber are very slippery. 

Aquarium Filters

If we use this filter, we must diligently change the lake water regularly; because the surface area of ​​the sponge is not sufficient to produce bacteria for biological filtration such as biofilter media such as ceramic ring or industrial lava, etc., water exchange time).

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Sucking filter is divided into two types:

Works on the principle of airlift (Air-Lift). This type we often see in the fish shop. From aeration machine, the air will be pushed to the surface of the water and drag the water through the foam.

This type of filter is suitable for tanks that do not need steady (flowing) flow; for example, ponds used to squeeze fish. So this filter has another name is Breeder Filter. Suck filters must be used with an aerator and suitable for fish farming.

  • Pros: Both types of foam filters are compact and cheap for the main aquarium.
  • Cons: Must be installed inside the aquarium, so if this filter will be used to disrupt the aquatic landscape. Often people who like decorating aquariums will not play this filter.

Type 5 – Hang-on filter

This hanging waterfall filter is suitable for unobstructed aquariums, which can be hung up into a very compact and convenient aquarium. However, their size is also quite small, so hanging waterfall filters are only suitable for aquariums that are about 60 cm or less.

  • Pros: filter hanging waterfall compact, handy, beautiful design
  • Cons: small, no filtration accessories, limited flow only flows around one place.
Aquarium Filters

Type 6 – Canister Filter, External Filter

This is probably the preferred filter for aquarists. Operating in a closed filter type, the filtered water is not exposed to outside air.

The advantage of this filter is that it is placed outside the lake, does not occupy the lake area, and has more compartments for filter accessories.

The mode of operation of the filter is to have two water lines. Water from the lake flows into the bottom of the filter and overflows through the filter media, which is then pumped back into the lake.

Aquarium Filters
  • Pros: Almost the most standard filtration system. Create good flow in the aquarium, and can also absorb bottom dust.
  • Cons: The investment cost is a bit high; there are many types of very high price filters.

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However, there is a Havoten filter in the market; this is a barrel filter, low cost, but still high efficiency. The order of arranging the filter material layers of the outer filter in the opposite direction of the running water is:

  • First tray: Chemical filters such as Resin (to help make the water soft) or activated carbon used to absorb color (of wood) and odors or poisons in the tank. These two types of filter media are not required.
  • Tray 2: Filter cotton first type. Used to filter dust or small dregs. This filter cotton should replace every month.
  • Tray 3: Raw or sponge filter cotton. This type of filter cotton is rarely used, but I think it should be, because they will help prevent heavy sludge, large waste can sometimes block the filter.
  • Tray 4: Biological filter materials. This part is most important because it is home to beneficial bacteria (also called microorganisms).

The surface area of ​​this filter material as much as possible because beneficial bacteria (help absorb, decompose the two toxins) will live here.

The most commonly used biofilter media is ceramic ring, bio ball or industrial lava, porcelain filter. And it also helps keep the water flowing evenly in the filter box and supplies oxygen-containing water to the bacteria.

Above is the information needed to help you choose the right aquarium filters . Axiosreview hope that you will find this information useful and valuable.

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