Last Updated on February 12, 2020 by Aiden Lindow

Reasons why you need to set up a filtration system for your pond

Ponds offer a natural habitat for fish and aquatic pets alike. Here are the key reasons why you need to set up a filtration system for your pond.Reasons why you need a filtration system for our pond

Whether man-made or naturally occurring, ponds provide an aesthetic appeal not only to your home but also to your office compound.

It’s important that you carry out regular maintenance to preserve a pond for its aquatic wildlife.

Unlike popular opinion, taking good care of ponds isn’t that complicated. One key secret towards the proper maintenance of ponds is committing to pond filtration.

In most cases, ponds do get affected by green algae. However, pond manufacturers have been working on a suitable filtration method to address this problem over the past decades.

There are many benefits that come along filtration. However, before we look at them in detail, let’s first understand what is meant by pond filtration.


What is pond filtration?

In most ponds water is often stagnant, this is because it lacks flowing water, and becomes contaminated much faster.

Filtration, therefore, removes any present impurities, sediments or pathogens from the water making it regain its clean and clear status.

This process is very important as it protects the fish that would otherwise die due to the accumulation of toxic substances.

 When pond water becomes clean, it provides you with more satisfaction and enjoyment.

Therefore, if you are serious about keeping happy and healthy fish, you need to carry out regular pond filtering.

There are usually two types of filtration i.e. the mechanical filtration and the biological filtration.

While each of the processes is meant for the same job, the two do use different filtration mechanisms.

For instance, the mechanical filtration process uses physical separation of the oil debris, filth, and suspended matter from the pond water to make it much clear.

On the other hand, biological filtration uses bacteria to remove the suspended particulate matter from the water.

The biological process alters the chemical property of water to make it safer for your aquatic species.

Regardless of the process you choose, the outcome is always a healthier pond.

What is pond filtration?


Types of filtration systems

Mechanical filtration system

The mechanical filtration system, also known as pond skimmer removes debris present in a pond.

There are several types of debris that contaminate ponds. Some are organic while others are of inorganic nature.

Organic material will eventually break down and release harmful chemicals into your pond.

However, the nonorganic types such as polythene bags do not decay/decompose therefore will remain suspended in water for long.

While in water, they cause blockages and can host predators, parasites or bacteria that could pose a threat to your aquatic life forms the main types of mechanical filters include floating skimmers and box skimmers.

The filters allow water to pass through them while separating debris from clean water.

The advantage of having this filter system installed in your pond is that it doesn’t require any chemicals- hence environmentally friendly.


Biological filtration system

Before installing this system to your pond, it’s important you first consider mechanical filtration.

This is because the system doesn’t filtrate inorganic matter but rather organic matter such as plant remains, micro-pathogens just to mention a few.

The biological filtration process does involve a cycle known as the nitrogen cycle.

The nitrogen cycle has a number of beneficial bacteria that break down toxins to less harmful products.


Chemical filtration system

The chemical filtration system is a filtration technique by which chemicals are used to purify the pond water.

In most cases, the most common chemical media used for this purpose is activated carbon or charcoal.

The chemical method has been proven effective in the elimination of odors, colors, ammonia, and other organic wastes through a process known as adsorption.

Nonetheless, the chemical filtration systems are only effective after a short time. Therefore, they should be replaced regularly.

Chemical filtration system

UV Filters

UV canister filters are one of the easiest filters to install into a pond. They are ideal for small ponds or pools not exceeding 6,000 litters.

The UV filters use Ultra-violet rays, (hint the name UV) to kills micro-organisms such as algae cells.

These rays are also effective in eliminating solid particles and other suspended particulate matter.

One thing that makes this filtration system so popular is that they are easy to install and to maintain.

Additionally, they are high-pressure systems hence can be directed to other water features such as fountains or even waterfall.

The UV canister filters are designed with sponges that are squeezed whilst backwashing resulting to clean water.

The UV rays are just strong enough to sterilize pathogens and any other micro-organisms that might be present within your pond.

If you are interested in the other benefits of UV filters I have written full buyers guide to UV filters.


Reasons why you need a filtration system for our pond

As a pond owner, it can be tiresome monitoring the quality of your pond every now and then.

However, there is one thing that can make the monitoring simple for you. This is nothing else other than a filtration system.

Therefore, the following are the importance of installing the system.

Usually, fish and other aquatic animals do excrete ammonia as waste.

The ammonia is often broken down to release nitrates and nitrites into the pond water.

When this happens, the water becomes concentrated with toxins.

However, when a biological filtration system is in place, the level of toxins will always be kept in check.

Instead of being concentrated in the water, the ammonia is broken down by beneficial bacteria to release oxygen, which is less harmful to the aquatic life.

Besides the conversion, the bacteria also promotes the dissolution of oxygen in the water.

This is one importance of the filtration system that can never be under-estimated.

Secondly, the biofiltration ( the use of bacteria) not only takes care of the minuscule litters in the pond but also acts on larger fragments that may fall in the pond.

For instance, when a tree twig falls in the pond, the bacteria act on it and within no time, it decomposes.

This then enables you to use a skimmer filter to take care of the cleaning process of your pond.

Another notable importance of the filtration system is that it helps balance both the flora and fauna density within the pond.

When this is maintained, it’s guaranteed that your treasured koi will thrive and stay healthier in the pond.

Filtration systems are also important when it comes to water conservation.

Remember, freshwater isn’t an infinite resource.

Therefore, if your pond is meant for aquatic life, it is best if you supply it with fresh water.

Sometimes, the best way to ensure a continuous supply of freshwater is through recycling and reuse.

Through the filtration systems, the water which would otherwise be considered as waste can be returned to the ponds as freshwater.

The resultant effect of recycling is the reduced cost of pond operation.

Reasons why you need a filtration system for our pond

Moreover, filtration systems play a critical role in reducing the concentration of lead and other heavy metals.

When ponds get contaminated by heavy metals including mercury or lead, it becomes very dangerous to rear aquatic lives.

For instance, if you keep fish in a lead-contaminated pond, the lead will slowly deposit in the fish.

Within no time, the lead concentration will reach harmful levels not only to the animal but also to the consumers. Imagine one ingesting lead indirectly!!!

Therefore, having a proper filtration system put in place helps eliminate any traces of heavy metals making you and your aquatic lives safe.

Infiltration systems also reduce turbidity & suspended solids. Usually, the turbidity of water is based on the amount of light that is scattered by particles in ponds.

When there are high turbidity and suspended solids, the water temperature often tends to increase.

This is because the suspended particles do absorb more heat from the solar rays as compared to water particles.

Once absorbed, the heat is transferred to the water particles through the process of conduction.

Therefore, when the filtration system is installed in ponds, it will ensure that the level of suspended solids and turbidity is kept checked hence a controlled water temperature.

Also, when the water temperature is affected, the residual effect that comes along is the reduced amount of dissolved oxygen.

According to research, warmer water cannot hold as many dissolved oxygen as colder water.

Therefore, the moment you’ve addressed the issue of temperature increase as discussed above, your pond will always remain cool.

This enhances the uptake of dissolved oxygen hence a healthy aquatic life.


Final thoughts

Ponds work best if they are properly maintained. For this reason, installing a proper filtration system helps in ensuring the pond water is clean and healthy for your aquatic lives.

Usually, there exist four types of pond filtration system i.e. mechanical filtration system, biological system, chemical filtration system and lastly the UV filtration system.

Regardless of which type you choose, they will always ensure your pond is effective in its purpose.

Installing a filtration system also helps reduce toxins from the water by converting them into less harmful products.

The filtration system also works not only in large particulate matter but the small ones as well. They help quicken the decay process of organic matter.

What’s more, they maintain water temperature and turbidity at normal levels encouraging the uptake of dissolved oxygen.

Therefore, if you are looking for ways to maintain our pond, the best thing to do is put up an infiltration system.