Having an aquarium represents a series of obligations and responsibilities that contribute to the complete development and quality of life of the species that occupy that space. Its maintenance and care is not simply to maintain a beautiful environment in the eyes of external observers but to create the right conditions of healthiness The filtering material is an important element when it comes to making the water in our aquarium look crystal clear and clean of impurities. Basically, the filtering material is responsible for removing all those particles of dirt contained in the water of our aquarium. There are different types of filtering materials and each of them is responsible for a task.

Filtration System of an Aquarium

Why do you need a system that cleans and purifies the water in your aquarium?

Fish tank filter

As the aquarium is a closed biological system, the metabolic processes of living beings end up altering their composition and chemical equilibrium.

This means:

First, in an aquarium the biological activity of its inhabitants produces waste. Excretions of fish remains of food remain of plants … and organic remains in general. And in the nature, these residues decompose and process without the major problem. But in an aquarium, its composition and chemical stability eventually become unbalanced. The accumulation and decomposition of this waste end up turning the aquarium into a toxic medium for its own inhabitants. That is why water purification is vital for the health of your fish, being necessary to eliminate biological waste before it becomes toxic.

How to choose fish tank filter?

When choosing fish tank filter for your aquarium you should always resort to the best quality and that is why these fish tank filters, specially compiled by our experts from a large number of filters available this year in the market, are ideal for you. Select the one that most convinces you and install it efficiently in your aquarium. Let’s see all about the filtration of the aquarium, the types of filters for aquariums and others. This topic is intimately related to the cycling process, which I suppose you already know. Just in case, I refresh your memory.

We call maturation or cycling of the aquarium to the microbiological process by which the colony of friendly bacteria settle in the filters for aquariums. The beneficial bacteria are part of the filtering system and are responsible for purifying the aquarium water. Through a biochemical process, they degrade polluting waste before it becomes toxic. The filtering materials are elements that make their function within the filtration system of our aquarium. It is necessary to know what the functions are of the fish tank filter that performs to achieve a healthy and clean aquarium. For this, it is important to establish a balance of both internal and external agents.

Resorting to filter:

Which are essential to keep the water in the aquarium clear and its environment free of impurities that could kill the fish?

What is cloudy water?

Are those waters that due to the sudden proliferation of bacterial colonies, which grow disproportionately becomes cloudy. They can be observed with the naked eye, causing the fish cannot be seen. This proliferation of bacteria can be caused by contamination produced by the death of fish, plants, or because there has been an increase in nutrients in the water, particularly nitrates and phosphates. Other causes and the most common is overfeeding, as food residues remain without being consumed by the fish, leading to their decomposition. Everything that is broken down into fish tanks represents a source of food for these scavengers.

What are fish tank filter types?

The fish tank filter is a mechanism whose function is to circulate water through it, eliminating the impurities that it contains, thus achieving that the water is purified by passing through the different filtering materials. The purpose of having a filter in your aquarium is to recycle the water and return it clean and clear after having eliminated all the waste that contaminates the water. The fish tank filter consists of a hydraulic pump as the main element, which has the function of pumping the water through the different filtering materials, which is composed of different levels of filtration which vary according to the porosity they have.


They are those that are inside the aquarium and completely submerged under water. They are ideal for aquariums of small or medium volumes.


They are those that are outside the aquarium. This type of filters, unlike the previous one, is indicated for aquariums of large volumes. The filters according to their configuration and operation can be: Mechanical, chemical and biological.

Mechanical filtering

It is responsible for preventing those particles of solid waste that remain on the surface, reaching the bottom of the aquarium, depending on the size of the trapped to the porosity of the filters.

Chemical filtering

Its main element is activated carbon, used to change the chemical composition of water, and catch some chemical elements that damage life in the tank.

Biological filtering

Its origin is natural, that is, it is not created by the hand of man, and is based on the nitrogen cycle, making the disappearance of bacteria in a natural way. But that toxic ammonia is transformed by bacteria into another product, nitrites (NO2). Nitrites are also toxic, even in small amounts and also cause the death of fish. But luckily, there are some beneficial bacteria that appear alone and that are in charge of transforming the toxic nitrites into nitrates (NO3). Nitrates have the advantage that they are tolerable by fish and only harm them when levels are high.

Nitrates serve as a nutrient for natural plants, which consume them. But its excess accumulates in the water and causes the appearance of the annoying algae. We hope you have helped these tips to start in this exciting world of the aquarium by using the.