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Filter materials for aquarium – types and description of substances

We have already spoken with you about the fact that the main purpose of filters is water purification. How a filter will purify water and what it will remove from it: dirt, drugs, or even toxic substances, it depends only on the type of filtering substance in it. All filtering materials for aquarium filters are divided into 3 groups:

  • Mechanical filter materials;
  • Chemical filter materials;
  • Biological filter masses.

The most common materials used in filters are mechanical. They are needed to remove large suspended particles from water.

Any slurry found in an aquarium can be easily picked up by a filter with mechanical filtration. The most commonly used material in these filters is foam rubber.

Foam sponge cleans the water only from dirt, it does not affect the bacteria in the aquarium, the presence of medicines in the water, etc., while it is reusable. After clogging, the sponge must be rinsed and re-inserted into the filter.

With this type of filtering, the dirt from the aquarium is not removed, but is only collected in one place, so the filter material must be regularly rinsed as it clogs.

Chemical filtration is necessary to remove toxic substances from water (which cannot be controlled by mechanical filtration). The process of removing harmful substances is called adsorption, and the material itself is called the adsorbent. The most popular adsorbent in aquarium is activated carbon.

It helps not only to neutralize toxic substances, but also to remove medicines after the treatment of fish, a variety of dyes and acids.

Ceramic tubes, lavalite, granulate, etc. are used as biological filtering masses. The principle of filtration is based on the fact that beneficial bacteria settle in the porous structure of the filtering material.

Due to the high content of oxygen in the filters, bacteria develop very quickly and help to process various toxic substances into harmless ones.

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