1. Soak in concentrated brine for one day. After washing with water, add tap water, connect all filters (it is best to cook glass ring ceramic ring with hot water) and auxiliary equipment, and turn on the power supply to run at full power. At the same time, potassium permanganate is added to the water until the water turns purple.
2. Run with potassium permanganate for about 5 hours. When the color of water turns dark red, the medicinal properties of potassium permanganate have been completely degraded at this moment, so replace the water and add ordinary tap water.
3, open the filter, open the air pump, pumping air 12 hours, you can extract water.
When the water becomes very clear, you can set the fish free.
Extended data:
Precautions for opening the cylinder:
1, equipped with a powerful filtering system, including enough filtering materials.
Generally speaking, filter materials are divided into three categories: physical filter materials, chemical filter materials and biological filter materials. In fact, most physical and chemical filter materials also have the function of biological culture. The purpose of configuring biological filter media is to provide sufficient adhesion surface for various fungi.
In the aquarium, if the growth and reproduction of fungi are limited by living space, it is difficult to adapt to the load of high-density feeding. Using filter media to expand the living space of fungi can obtain stronger self-purification ability than under natural conditions.
2. Sufficient oxygen supply.
The decomposition of organic matter consumes a lot of oxygen, which will reduce the oxygen content in water, which not only threatens the survival of fish, but also is not conducive to the growth and work of aerobic bacteria. In the case of high concentration of organic matter, it is of great significance to replenish oxygen lost in water in time.
Nitrifying bacteria are typical aerobic bacteria, which can not effectively oxidize ammonia and nitrite in the absence of oxygen, and when ammonia and nitrite reach a certain concentration, it will also lead to fish death.
3. Actively introduce beneficial bacteria, select nitrifying bacteria or compound bacteria (including nitrifying bacteria) and put them into the aquarium.
Nitrifying bacteria are everywhere, and they will multiply in large numbers as long as there are suitable conditions. However, nitrifying bacteria belong to autotrophic bacteria, which must synthesize organic matter in the body and reproduce slowly. If enough nitrifying bacteria are put into the aquarium, the speed of establishing nitrification system can be accelerated.