Best Aquarium Filter Review 2020

A comprehensive guide to why you need them and which one you should buy.

What would you say is the biggest concern of the 21st century? What is the biggest talking point? What is the one thing that affects us all irrespective of where we come from or what our economies are like? The answer is simple: Environment. 

For any organism to thrive, the biggest factor that has a say on it is the environment that it lives in. The environment has the ability to birth, nourish, grow, breed, sustain, or on the contrary stunt or even hinder the growth of certain organisms.

Fish are no exceptions to this. The environment that the fish live in i.e. the water plays undoubtedly the biggest factor in what kind of a life the fish shall live. In the wild, everything is regulated by nature. The light time, the plantations, the presence of other fish or lack of them, the presence of microbes, and especially the regulation of the ecosystem are handled by nature itself.

But that is not the case in aquariums. Aquariums are artificial microenvironments with static water. The water does not naturally flow or change. The central pushing force of nature is not present in them. That must be supplied. And that brings us to our point: the regulation of the ecosystem inside the tank must be done by us. And the most important part of that regulation is filtration. And here we shall learn as to why exactly aquarium filters are necessary, how they work and hopefully, by the end of it, you will have a better idea of what kind of filter you should choose and why for your tank.

Do I really need a filter for my aquarium or is it just another fancy expense?

The main function of water filtration is to cycle out the waste products that collect in the tank throughout time. To keep the water looking clean and clear is the secondary benefit.

The science behind the filtration:

Most aquatic animals are ammonotelic in nature. Ammonia is the main excretory product with trace amounts of urea too. And both of these products are very harmful to your fish. Species like goldfish are very sensitive to the low ammonia levels and unchecked ammonia levels can cause all sorts of problems that you don’t want in your tank.

Most fish that we keep as pets come from the wild where there is a consistent flow of water. The flow of water is more important than you think. The flow is what keeps the waste products from accumulating in one spot. It keeps the ammonia and other harmful products moving.

However, an aquarium is a static environmental bound by an enclosure. The water doesn’t flow and doesn’t get changed per cubic volume with time by itself. That has to be done mechanically by us.

Now you might be thinking, well then, I can change the water consistently, why do I need a filter? That is because water changes can be done only so very often. And water changes bring about fluctuations in water temperature and pH and other values which may lead to dangerous conditions for fish. Hence, there must be some other way to keep the environment in a sustainable format. And yes there is. The way is called “The Ammonia or Nitrogen cycle”.

Ammonia is a very harmful substance and many fish show high susceptibility for even low levels of ammonia. But in a well-established aquarium, the water has helpful bacteria like Nitrosomonas and Nitrosococcus that help in converting this harmful Ammonia into more acceptable forms.

The Ammonia is converted to Nitrite, a slightly less harmful but still harmful nonetheless compound by nitrogen-fixing bacteria like Nitrosomonas. The Nitrite is then converted to Nitrate which is a very less harmful compound with the help of nitrifying bacteria like Nitrobacter. The Nitrate can be used by the plants you have in the aquarium or can be scooped up during water changes. What it does is it gives you more time between water changes as it is very less harmful as compared to the Ammonia.

But this “Nitrogen cycle” only occurs in a well-established tank. The nitrogen-fixing bacteria take time to get settled. That is why we often encounter the new tank syndrome. You set up a tank and everything is ok and nice for a week and the next week the fish start to die out all of a sudden. That is because of the lack of the nitrogen cycle.

Now, this is where the aquarium filter comes in. The filter is the home for such bacteria. It provides the bacteria with a suitable atmosphere to stay in the tank. The whole core of filtration is revolved around this process and is supported by other mechanical and chemical processes. Hence we can broadly classify the filtration into three categories:

Mechanical filtration

This is what most of us have in mind when we hear the word filtration. Mechanical filtration is the physical process that uses the machinery to remove the harmful physical particles by straining it through aquarium filter medium and thus stops it from circulating in the tank water. Mechanical filtration is a part if the total process of filtration, it is the physical act of making the water go through the filtration unit but this is not the be all and end all of filtration. It is the secondary process that removes the free floating stuff before it gets to decay into unseeable forms. For the mechanical filtration to be beneficial the filtration medium must be cleaned or replaced twice or atleast once a month.

Another major function of mechanical filtration is increasing the dissolved oxygen level in water. In simpler terms, it increases the oxygen content of the water 

Biological filtration

As we have discussed earlier this is the core of filtration. This is the central process around which other things revolve. This is the process by which the beneficial bacteria breakdown ammonia into nitrite and then finally transform them into compound nitrate, which is much less toxic than the original ammonia. This gives the owner a longer time in between water changes and hence prevents fluctuations of water para meters like pH temperature.

But for the beneficial bacteria to thrive, the water must have a certain oxygen level, as well as the bacteria must have a substrate to achieve attach themselves to.

If you have a very small population of fish in your tank, biological filtration alone can sustain the healthy ecosystem inside your tank. However if you have plants and larger or more number of fish then biological filtration must work in tandem with mechanical and chemical filtration.

Chemical filtration

The water that we pour into our aquarium comes from different sources. The most common source is the tap water and the composition of the tap water may depend upon the from place to place that you live in.

 So that tap water contains different kinds of dissolved metals salts and compounds like tannins and reasons and other impurities.

Neither the mechanical filtration nor norther biological filtration can remove such dissolved impurities from the water. Hence, the need for chemical filtration.

The most commonly used chemical filtration is true the activated carbon or some kind of special reasons that removes such medications and tannins and other impurities from the water. The downside however is that once the chemical filtration substance get saturated with impurities the media no longer is able to absorb pollutants from the water and you have to change it again.

So these are the components off the filtration process that occurs inside an aquarium tank. When choosing an aquarium filter we must be attention as to what kind of filtration it offers whether it’s just a mechanical filter that only strains out the solid easily noticeable impurities or does it also have chemical filters that string out the unwanted dissolved impurities in the water but it also has biological filtration.

As per the process a filter should run the total volume of water present inside the tank at least four times an hour to maintain the cleanliness inside the water.

Filter Media

Now before talking about the actual types of filters let us look into the types of aquarium filter media.

The purpose of aquarium filter media is to provide a surface for the beneficial Aerobic bacteria to sit upon and carry out the nitrogen fixation process or the “ammonia cycle” inside the tank.

So in other words you can say that the aquarium filter is the home for the bacteria that are responsible for biological filtration.

The aquarium filter provides an ideal environment for such large numbers of bacteria to grow in with its high water flow and dark conditions that are suitable for the bacteria colony to grow.

Most canister filters have 3 media trays. For most os the tropical fish the best arrangement of media is large in the bottom tray, medium amount of media in the middle tray and an open cell phone pad in the top tray. This is applicable when your filter flow is from bottom to up as in the case for most canister filters. This kind of arrangement slows the water flow down and as it passes the bacteria clinging to the filter media have more time to process the waste.

Here are the descriptions to the filter media that should be kept in the three trays in moat canister filters:

Large filter media

The larger filter media which are also called as the pre filter  media, is usually made-up of hard ceramic shapes that are half a feet long and half a feet round or hexagon with a hole through their centre. They’re placed in the bottom tray of the filter and help to spread the water flow across the filter thereby slowing it down while providing some surface area for bacteria to cling to.

Medium filter media

As the name says these filter media are placed in the middle tray of your filter. They usually come in hard round or irregular shape of about 1/4th of a feet in diameter. This gives superior water flow because they don’t compact as the round ones and they can also help if you are having clogging problem with your filter.

Open cell foam pad

Most canister filters and smaller cheaper filters as internal corner filters usually come with open cell foam media. In the canister filters these foam pads are kept in the top tray.

Activated charcoal

Activated charcoal which is also used in chemical filtration is a widely known industrial absorbent that is used to absorb chemicals from here and fluids and it is often added to aquarium filters as a water polisher. It is also used as a filter media.

Charcoal improves the colour clarity and smell of the aquarium water and it also helps in removing the heavy metals

Just like a teabag in a cup of tea the tacos are usually kept in an island bag and placed in the filter. These bags are suspended in the aquarium but their absorption efficiency is low because the water flow past him isn’t as high as in the filter.

But be careful if you have used medication in the water because charcoal also absorbs the medication and it has a limited lifespan and should be replaced regularly.

The important thing to note here is that the filter media is not used to actually filter the water. Its primary purpose is to increase the surface area within the filter so that it consequently increases the number of bacteria that can colonize it. The filter media provides only limited filtering of water.

Types of Aquarium Filters

Now that we know why we need filters in our aquariums, how they work and the kind of aquarium filter media they have we can move on to the types of aquarium filters.  Broadly speaking the aquarium filters can be divided into two types on how they move water in and out of the aquarium.

 The first kinds are the ones that use air bubbles to lift water up a tube.

 The second kind other ones that use electrically powered water pump.

It goes without saying that electrically powered water pumps generally move far more water than the air powered filters.

Aquarium filters can be detailed into the following kinds:

Sponge Filters

The sponge filters are as simple as their names suggest, they have a sponge through which the aquarium water is pulled in. These are one of the most primitive filters that I’ve been present since the early days of aquarium keeping.

Their makeup is fairly simple in that they have three components a sponge filter which is kept inside the tank, an air pump which is kept outside the tank and of course a bridge in the shape of an airline tubing to connect them.

These sponge filters work on the principle of air suction. The air pump pushes the air into the sponge filter which has a hollow cavity thus making a vacant space inside the aquarium. This pulls in the water in the form of bubbles and the water is led through the sponge walls.

Hence it provides mechanical filtration by trapping the physical dirt present in the water.

Once the sponge as matured then the bacterial colonies start growing on it and it also helps in biological filtration.

The sponges by their very nature come in various shapes and sizes as well as pore sizes and are flexible in a sense that they can be used in a number of methods, including air pumps including being powered by mechanical electrical power heads or even another type of filter.


  1. Sponge filters are excellent when we need a gentle current in the aquarium. Fish species like bettas shrimp and young fries do not survive in a strong current because they get sucked inside the filters. Hence, sponge filters are excellent choices.
  2. Sponge filters are perfect to start new bacterial colonies inside new fish. Once the new aquarium is set up, the matured spa inch with the well established bacterial colonies can be placed in a bag of water and transferred directly to the new tank thus maintaining the biologicals.
  3. Sponge filters work wonderfully as a pre-filter to the inlet for other filters for example a canister filter.
  4. Sponge filters are relatively very easy to maintain and cheap.


  1. These take a lot of space inside the tank which may be hindering for the aesthetics of the aquarium decor
  2. There is a complete lack of chemical filtration and there is no means to include chemical media and it can provide only mechanical and biological filtration.
  3. It may make a bit of a sound if you are keenly an easily irritable to such noises.

Hang On Back Filters

As the name suggests these are external filters that hang on the back of the aquarium tank.

These can be quite large but still not as perky as canister filters and can be used in a wider range of tanks.

It has a water intake tube that carries the water beer nozzle from the tank to the filter.

Inside the case the water is filtered by the sponge or other filter media and finally water filtered water goes back into the tank through the shoots, creating a waterfall like flow.

This not just helps in filtering the water but also helps it oxygenated.

Thus the filtration technique that is used in the hanging on back filters unknown as waterfall method and the hanging on back filters are also known as back back filters as they come in a single case and hang on the back of the aquarium.


  1. These filters are quite versatile and customizable as different kinds of filter media can be used.
  2. These provide all three types of filtration and really polished the water.
  3. It is very simple to use and the damage due to water is very less because most of the filtration units are outside the aquarium.
  4. During the change of water or during maintenance these are easily removable and many of the Hang on Back filters have adjustable flow reads so that you can increase or decrease the flow of water as needed.


  1. Since these filters use a powerful motor, and if the water accidentally runs dry or if it sucks up sand, the motor can easily damage and burnout.
  2. These are intended primarily for freshwater use. For marine aquariums, you only better use it if you are experienced with it.
  3. They usually consist of simple removable cartridges and while you clean up your carbon filter you can be throwing away a large portion of the aquariums good bacteria.
  4. The waterfall sound can be irritating if you are easily irritable by sounds.

Canister Filter

As the name suggests canister filters use a canister that is a plastic box that holds trees for different filter media.

The canister or the plastic box is usually placed under the stand of the aquarium. There are two hoses intake and output hoses that reach into the aquarium into the canister.

There is a motor through which the water is drawn into the canister it travels through the trees of the filter media and then is returned to the fish tank.


  1.  Only the canister is placed inside the aquarium which makes these kinds of filters take very less space inside the aquarium and does not deserve the aesthetic of sure thanks.
  2. These are highly versatile and customizable and also come with accessories like bears and wishes UV sterilizers and automatic priming.
  3. These are ideal choice for tanks a 40 gallons are larger specially for sure thanks because they can be completely concealed.
  4. These are highly customizable to give all three kinds of filtration hence they can also remove chlorine from the water or special reasons and dangerous toxins.


  1. These filters usually come with a hefty price tag
  2. The maintenance and so everything is quite technical and can be difficult at times and you may have to practically disassemble the whole setup every time you want to clean out the insights
  3. The filter media is kept outside the tank. It can be good for the aesthetics of the tank however during a power outage it has a risk of suffocating the Arabic friendly bacteria needed for the nitrogen cycle.

Fluidized Bed Filter

As the name suggests, the filter media in the fluidized bed filter is held in a bed by a suspension through the pumped water flow so that every particle of the media will have an exposed surface area to contain the beneficial bacteria needed for the ammonia cycle.

These filters have a tube or a box that hangs off the back of your tank or contain a cylinder slash canister which stands in your thank or on the floor beside or under a fish tank.

It is then connected to a water pump inside the fish tank and then moves the water through the filter.

These filters force water through a mass of small heavy granules which I usually made above sand, silica, plastic chips that are present in the bottom of the tube.

These provide biological filtration and are named so because of the speed at which water is passed through the filter media, it becomes fluidized i.e. the grain sand or pellets or whatever is constantly being pushed up by the current and then falling back through the water in response to gravity similar to the snow in snow globes.


  1. The kind of filter media that can be used in these filters is very versatile ranging from sand, white quartz to even sintered glass.
  2. The size of the chamber can thus be decreased due to the efficiency; say for a filter with a chamber of 3 feet height can easily cope with anything upto 1000 liters of water.
  3. These are used as backup filters by many fish breeders because of its efficiency in a reduction in ammonia and nitrite levels.
  4. These are cheap and due to the simplicity, there are several models supplied by many aquarium distributors present in the market.


  1.  Some people and some studies believe that this fluidized system actually hinders the gaseous exchange of the water. Thus many aquarists prefer to run an airstone in the main systems to compensate for this.
  2. During a power outage, if left for a long time the bacterial colony can start to leak toxins back into the system.
  3. These provide biological filtration and hence it takes time to build up a colony of beneficial bacteria so it takes time to reach 100% efficiency.
  4. This cannot be used as the only mean biological filter and always should be used as an additional filter only.

Submersible Aquarium Filter

These filters as the name suggests must be completely submerged in the water to work correctly. Hence, these are internal filters.

These work on the principle of air bubbles that create much-needed movement in the water that allows the filter the liquid throughout the entire tank.

These have an inlet to which the airline is connected. The air is driven by the pump which is situated outside the aquarium. The air is pumped into the filter and then it moves through it and finally is dispersed on the water surface creating an air bubble.

These kinds of internal submersible filters are perfect if you have an area in your aquarium where you need to increase the water flow.

These are also highly effective as secondary or supplemental filter units when your tank has a high bioload.

These are generally used on smaller tanks under 20 gallons.


  1.  These are relatively inexpensive, very easy to install, require less maintenance, and are also quieter as compared to other filters.
  2. Since these filters are placed inside the tank it allows your tank to be placed right against the wall unlike external cabinet or hanging on the back filters.
  3. It has an adjustable aviation feature that totally mixes air with water and is effective in gas exchange inside the water.


  1.  Since these are placed inside the tank, they have a higher chance of disturbing the water and creating cloudiness.
  2. In case of a leakage or damage, these have high chances of being even more damaged meanwhile also leaking toxins into the water.
  3. Obviously, these ear up space inside the tank that could otherwise be used by fish or plants.

Live Aquarium Plants

In the wild where did I know specific equipment for water filtration, the localized water filtration is done by the plants inside the water please stop pens live plants inside your aquarium certainly do help in the filtration process although they might not be the end all and be all for filtration.

The plants absorb nitrate from the soil and use it to grow and also use other waste products that are thrown out by the fish.


  1.  Having live aquarium plans reduces your workload and frequency of changing the water inside the tank as the use of ammonia nitrites and nitrates from the nitrogen cycle for their own growth.
  2. In addition to these the life plans after using the waste products of the fish also increase the dissolved oxygen content inside the water.
  3. These also provide the fish with shade during the daytime and help in maintaining the water temperature.

These also help to reduce the unwanted algae population are using up the nutrients in the water.


  1.  These add up work in a sense that you have to learn about how to keep the aquarium plants alive who stop
  2. These do not provide any kind of mechanical or chemical filtration so you will need extra filtration unit or water circulation unit anyhow.
  3. Not all kinds of plants are compatible with certain kinds of fish inside your tanks because many fish might nibble how do the leaves other stems of the plants.
  4. Cleaning becomes an issue because of the dead leaves, algae, and possibly fertilizer part of your tank as a part of regular maintenance.

Best Aqurium Filters

Do you sometimes go to the market intending to buy something then look at all the choices on offer to you and just get surprised and have no idea what to do?

Well then, don’t worry not only have we told you why the aquarium filters are needed and how they work and what kind of aquarium filters are there present in the market. We also have compiled that list for you about the actual brands of aquarium filter that are present in the market.

So let’s look into the best aquarium filters that are present in the market with their detailed analysis, price ranges and pros and cons.

Seachem Tidal Power Filters

Our pick as the best 55 gallon tank filter.

Seachem manufactures aquarium filters for up to 100 gallons but the one we are talking about here is our pick for a 55-gallon aquarium.

The seachem title power 55-gallon filter is a hang on the back filter with a powerful motor.

And it is an internal filter with a 250 GPH internal motor which means that the motor stays inside the aquarium. This is a benefit because you never have to fill the back of the filter with water and it primes itself.

You also get an adjuster to adjust the flow of the output increasing or lessening the current after water in the tank.

It doesn’t use cartridges instead has a large basket for the filter media to be kept on and you can keep whatever kind of filter media you wish to beat sponge or charcoal.

The title also features a bottom-up flow of design this design is effective in pushing the water through the filter media and makes the filtration process more effective.

Additionally, it has a heater Holder that allows you to attach the heater Right on the side of the filter thus putting the heater in the highest flow area of the tank allowing for the even distribution of heat.


  • Even though this is a power filter it doesn’t make even a bit of noise.
  • The adjustment dial on the top left of each filter helps you to turn down the current of water while feeding to reduce the filtering of food or when servicing the median filter pads.
  • It is self-priming which means you don’t have to fill the back of the filter with water by yourself.
  • You get a three years warranty out of the box and another two if you register your product equivalent to five years of guaranteed product support.


  • Surface schema makes it a bit unsafe for young fish fry and shrimp that

Seachem Tidal Power Filter

Our pick for the best 35 gallon tank filter

The tidal power Filters are designed from the ground up to provide your aquarium with high quality, comprehensive filtration. They are easy to use and adaptable to a variety of aquarium conditions

As you may have noticed by now they come in different sizes. The title 55 which means sweet able to use in 55 US gallons that is 200 litres of aquarium Tank is followed by the title 35 which is used for the 35 gallon tank.

The ventilation slots in the lead of the philtre and aeration groups in the outflow ensures that the water returned to the tank is fully oxygenated.

It does not use any filtration cartridges.

When the filtration media becomes clogged water is redirected around the philtre and back into the aquarium through an outlet on the side. This re directed water pushes a blue maintenance alert on the top of the philtre, signalling that the philtre needs to be cleared.

It do like it’s 55 gallon cousin as a self priming and flow regulation feature along with quirky features like side heater Holder and also the surface skimmer.

This filter like it’s 55 gallon cousin is well built, packed with some nice simple features and the heater clip stuck onto the side of the filtre which allows uniform eat distribution throughout the water. We definitely recommend this philtre for a 35 gallon tank.

Marina S10 power Filter

Our choice for the best  10 gallon water filter.

This is a hang on back filter and is also easy to use an external filter that doesn’t take up too much space.

The Marina power filters come in three sizes, the S10, S 15, and S 20 for aquariums up to 10,15 and 20 gallons respectively.

It has a slim and compact design but is quite long and thus can hold a good amount of filter media.

The pump that powers the filter is situated inside the tank while everything else is outside.

The Marina slim filter also features quite common waterfall water dispense as seen in most hanging filters.

It comes with two kinds of filter cartridges the bio clear and bio carb. These cottages are filled with Ceramitek which is a highly porous ceramic used for biological filtration.


  • It has a slim and compact design that makes it ideal for tight gaps.
  • The quality of this product is high and the Ceramitek filter medium performs excellent biological filtration.
  • it has an adjustable flow rate.
  • The waterfall water dispenser provides optimum opportunity for gas exchange.


  • Some of the users have complained that the water pump that is kept inside the tank when it comes in contact with the tank glass makes vibrating noises.
  • The filtration capacity is small and less versatile for using many types of filter media.
  • Due to the presence of two different kinds of cartridges, the operation costs can be high.

Fluval 307 Performance Canister Filter

Fluval 07 series comes as the 7th generation filters with a 40 years of generational history.

The 307 performance canister filters up to 303 US gallons per hour or 1150 liters per hour and consumes 16 Watts of power.

The canister has a big, beefy appearance to it and is enclosed in a strong plastic box.

All the filtration media needed for a water filter is included inside the canister when you first buy it.

The new 307 design has a more robust priming device that can be used by a single finger.

Fluval say that they use the ETEC technology in it that makes its motor power to help speed the filtration process And promises to offer a high level of quality and efficiency for the production cost.


  • It has an instant startup option and doesn’t require manual syphoning to get it started.
  • As compared to other philtres the Fluval 079 is quiet and makes very little to no noise during operation.
  • The system includes independent modules that allow for easy and mess-free removal of dirt from the philtre.
  • The clamp area is strong and the whole life lock system makes it easier to mount.


  • With great reliability and strength comes a scrape price tag. the Fluval 07 line is quite expensive as compared to other products in its category.
  • It is quite bulky and beefy and you may have space shortage to keep it.

EHIEM Classic External Canister Filter

It is a canister filter and the canister or the box is made of thermoelastic Silicon sealing ring fixed on the pump head for easy and safe closing after cleaning.

It is recommended for tanks up to 95 gallons.

The flow rate is 164 GPH and the design is quite simple.

It is a classic model. And the build quality and the parts quality is exceptional

The setup process is quite simple and straightforward if you follow the manual.

Many users a claim that this filter provides the most efficient and highest flow rate of water.

Instead of the usual 3 media basket for mechanical chemical and biological filtrations, this filter uses a Substrat Pro media and eheim make technology that is used for trapping the larger debris and dispersing water.


  • This filter produces exceptionally low noise and is very silent during operation.
  • The reliability and sustainability is good as it does not leak even when used for a long time.
  • The installation is quite straightforward and even knew users can install it quite easily.
  • It has a very low energy consumption.


  • you may be out of luck if any of the singular parts get destroyed because getting the replacement of parts for this filter is quite hard.
  • The impeller in this filter is made of ceramic and it is very prone to breaking.

Penn Plax Cascade 1000 Canister Filters

These are canister filters that can be used for both freshwater as well as marine environments.

These are recommended for 100 Gallon aquarium and provided 265 GPH water flow.

These have high tech swimming pool style rotating valves with flow controls and easy to use push button primer for quick and easy setup.

These have the traditional three large media baskets.

The flow valves can be easily removed from the Canister while maintenance while the hoses, intake and output lines remain inside the tank.

It comes with a core sponge as filter media.


  • The design. off this canister is strong  off this canister is strong and sturdy and ensures that the product works for a ling time.
  • It is quiet easy to set up and is effective.
  • With each canister brought, you get a free filter media.


  • The consumption of power in this filter is quite large as compared to others.

Cascade CCF5UL Canister Filter  

Our choice for the best aquarium filter

The Cascade 1500 filters are designed to be simple, provide maximum filtration for freshwater and marine aquariums.

These pump upto a staggering 350 Gallons per Hour of water.

These have two internal media trays that provide mechanical and chemical filtration while the filter media in it provides the biological filtration.

The trays are large enough to allow you to customise your filtration. They stack on top of one another.

The motorhead goes on top of the trays providing a compact the design and it has an integrated O-ring and uses for blocking clamps to ensure it to be watertight.

It also has quick disconnect tubes that act as a flow regulator with this little valve to regulate the water flow through these.

 The inlet and outlet nozzles are adjustable and rotate to allow a custom fit.

All models have a simple push down self priming button for easy starting.

The coming models for 30 gallon aquariums up to 200 gallon aquariums.

 Main intake and the outflow are easily marked.

We get a floss pad for removing particulate matter and a cold sponge that provides abundant surface for promoting bacterial growth. And they are included free with purchase. Hens. These add versatile enough to use any combination of different media..


  • The design of these are sturdy and strong and the reliability is unquestionably long lasting.
  • These are high power filters that have high water turning rates and can be used in heavy duty tanks of large capacities and higher bio load.
  • The filtration trays are stacked one upon the other and are large enough and versatile enough to carry large amount if filter media that can also be easily replaced.
  • The repairing of parts is easy as parts can be easily dismantled and handled separately.
  • It has flow regulators and valves  to control the speed if the current if water flow thus making it useful for varieties of fish. .
  • There is a minimum chance of leakage through the inlet or outlet hoses as everything is so well made and top quality.


  • This is a huge filter thus making it not easily hideable.
  • If you do break on of the parts, the individual part can cost a lot to replace.
  • With great GPH comes great power consumption.  

How do I choose the right filter for my tank?

The things you must consider before you get to the shop.

Well, we discussed as to why you need aquarium filters and what kinds of filters do you have on offer in the market. But how exactly should you choose the filter fir your particular aquarium? Not all filters are suitable for every tank. So there certain factors you might keep in mind before heading to the nearest aquarium shop:

Tank size

The manufacturer, without fail, indicates on the packaging about the recommended Thanksies That should be used with the filter.

Not all filters can be used for all sizes if tank. It is thus important to know what filter goes with what tank size.

Technology that separates one filter from the other

Many filters offer different kinds of quirks, features and technology that might make one brand suitable than the next. Some filters have automatic lights that tell you when the water amount is running low or when the filter needs cleaning. Some of the filters have easier processes of setting up that makes them more suitable for newbies. So, all this should be taken into account before you buy a filter.

GPH or Water Flow Rate

The GPH stands for Gallons per Hour which is the measure of amount of water the filter passes through it per hour. Higher the GPH, higher the water fills up in your tank. It is thus required to research about what brand offers filters of what GPH and what kind yiu mar require depending upon our tank.

Rate of water current flow

Now, the filter runs mechanically on a simple process: it takes in the water from the tank, circulates it through the filter media and passes it back into the tank. It is when the filter is passing the water back into the tank that we must take in account of the rate at which the water enters back into the tank. Some fish species, small fish fry and species like shrimps cannot live with high water current. Hence, you should nit firget this easily overlooked detail.


Clichéd or sell out statement but brands do make a difference. Brands like Fluval and Penn Pax offer long history of filter making and thus their products are more reliable. And it is not just about reliable but also about the easy of availability of their spare parts and replacement as well as repair.


Ah well, the old money thing. Doesn’t really seem to go away, does it?

It goes without saying that only spend what you can afford. Often it is not necessary to have the heaviest, most powerful, most gizmo laden filter for your aquarium. Simple filters do the trick for simple home aquariums. The price goes up with the size, the bio load in the tank and the purpose if the tank.

Here is a list of prices of the brands we have suggested:

Seachem Tidal Power Filter for 55 gallon tank : $ 60

Seachem Tidal Power Filter for 35 gallon tank: $51

Marina S10 Power Filter for 10 gallon tank : $14

Fluval 307 Performance Canister Filter : $ 145

EHIEM Classic External Canister Filter: $ 125

Penn Plax Cascade 1000 Canister Filter: $

Cascade 1500 Canister Filter:$


  • Do I need a filter for my aquarium or can my fish survive without it?

Yes. You do need aquarium filters. Especially if you have a new tank. The aquarium is an enclosed environment with static water. The fish make a lot of waste products and excrete them into the water around them. If not taken proper care of, the rising ammonia and Nitrite levels from the excreta can cause a lot of problems for the fish.

You may say, well, I can just change water for that. The changing of water is just a short term fix. What the tank needs is a long term solution in the form of beneficial bacteria that change the ammonia to nitrate. This can only be done when there is a filter present.

  • Where should I place my filter?

Sadly, most filters already have a designated position and you can do little to change them. A Hanging on Back Filter will always be hanging on the back of the sump. There are larger filters like Canister filters that must be placed in a way that doesn’t obstruct the aesthetics of the tank.

  • Should I let my filter run always? Or should  I shut it down at times?

It is not advisable to turn off your water pump at night or at any time. These must be kept on running throughout the day and night. If you turn off the water filters, the bacteria colonizing the filter media may die due to the lack of oxygen that is supplied to them through continuous water flow through the filter.

  • How should I choose what aquarium filter I need?

The answer to this depends upon many factors. It depends upon your tank size. Most packages have markings as to what tank size the work for. It depends upon what features you are looking for. It depends upon your budget too.


Hence we can conclude that the aquarium filter is 100% necessary piece of equipment that you must have in your dank. But unlike what most people think aquarium filters are not just there for digging out the physical debris and dirt particles that are visible. The aquarium filters act as homes for the beneficial Arabic bacteria not helping converting the ammonia excreted by the fish inside the tank to less harmful forms of nitrate.

There are loads of varieties in offer in the market and you must choose to depend upon your needs. There is no hard and fast rule for what aquarium filter is best for you but that should be decided on the basis of your tank size your budget and your needs.

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