Nowadays, many companies keep ornamental fish in their offices, and many people also keep ornamental fish at home. We all know that raising ornamental fish requires regular filtering of the fish tank of ornamental fish. Otherwise, the deterioration of the water quality will affect the health of the fish and lead to the death of the fish. However, how to filter is also a headache for friends. Poor filtering will also bring unexpected damage to the fish. Combined with these problems in daily life Questions We have some discussions on the issue of aquarium fish tanks to help friends provide some references in their daily filtering.

Why do we need to filter the fish tank?

Fish will excrete feces, and feeding fish will leave residual substances, which will increase the content of impurities in the water, cause the water quality to deteriorate, and cause damage to the fish. Therefore, in order to keep the water clean and maintain the ecological environment required by the fish, the fish tank needs to be filtered.

    Filtration principles for fish in aquariums

1. Thoroughly remove fish waste and impurities to keep the water clean and pure;

2. Create a water ecological environment to meet the survival needs of fish.

3. Filtration methods for raising fish in aquariums

Generally, two methods of physical filtration and biochemical filtration are adopted.

Physical filtration is to remove impurity particles in the water to keep the water clean and pure, to avoid harmful pollution caused by impurities and damage to the health of fish; biochemical filtration is to use beneficial microorganisms (mainly nitrifying bacteria) to dissolve the residues left by physical filtration. It converts harmful substances (such as ammonia) into beneficial substances, and through the ecological cycle, makes the water body suitable for fish survival and healthy growth.

Fourth, the difference between physical filtration and biochemical filtration

There is no essential difference between physical filtration and biochemical filtration, only the functional difference.

The two filtration methods are a complementary relationship, both in order to maintain the water quality in line with the survival needs of fish. Physical filtration does the rough work, and takes the first step of filtration to remove impurities and particles in the water as its own responsibility. Biochemical filtration does fine work, and does the work that cannot be done by physical filtration.