Before understanding what filter media should be put, you first need to grasp some preparatory knowledge of saltwater fish tanks. A saltwater aquarium requires a certain filtration system to maintain water quality, and the filter media is the core component of the filtration system. The role of the filter media is biological filtration and mechanical filtration, through the filter media, the undesirable substances and waste materials removed, so that the fish tank to maintain a stable environment. Commonly used filter media are biochemical cotton, serpentine, diatomite, activated carbon and so on.

2, biological filtration filter

Biological filtration refers to the use of specific filter media, for bacterial attachment and reproduction, so that the ammonia in the water, nitrite into nitrate. In saltwater aquariums, common biological filtration filter media include biochemical cotton, serpentine, diatomite and so on. Among them, biochemical cotton, also known as filter cotton, can adsorb excess microorganisms and toxic wastes in the aquarium, and at the same time, biochemical cotton is relatively easy to clean and will not harbor bacteria. Snake skin stone and diatomite, on the other hand, can better maintain the stability of the water quality, and at the same time, it can also make the water more transparent, which can help the ecological environment of the saltwater aquarium.

3, mechanical filtration filter

Mechanical filtration refers to the filter material to directly remove impurities, waste and other substances in the aquarium, such as filter cotton, sponge and so on. The main role of mechanical filtration filter media is to prevent the water flow too fast, slow down the speed of water flow, and can filter out some of the larger impurities. Among the mechanical filtration media, sponges are more effective, not only can intercept most of the waste material, but also can form a relatively stable ecological environment on the seabed.

4, activated carbon filter

Activated carbon is a commonly used filter media, its main role is to remove odors and organic pollutants, but also some sterilization and mildew effect. In saltwater aquariums, activated carbon can adsorb harmful substances and pigments in the water and improve water transparency. At the same time, activated carbon needs to be replaced regularly to maintain its filtering material effect.