the small fish tank filter? Generally, the small fish tank uses a filter or a filter bucket, which does not occupy the space inside the fish tank and ensures that the fish have a place to move. The advantage of the upper filter is that it is easy to install and manage, but because it is above the fish tank, it may not look coordinated and affect the overall ornamental. The filter bucket is external, so it needs a special place to put it, but the filtering effect is still very good, but it is not very convenient to clean it.
are needed for filtration? 1. Filter cotton: Filter cotton is an essential filter material in filtration equipment. It is generally placed in the first layer. Its function is very simple. It filters out the dirt and impurities in the water, so that the water flowing through it will become clearer. Not only that, some filter cotton can also cultivate nitrifying bacteria, thus playing the role of biological filtration.
2. Activated carbon: Activated carbon is usually the filter material in the second layer of filtration, which is mainly responsible for adsorbing various harmful ions, thus playing a role in improving the water body. It should be noted that there is an upper limit for activated carbon, which is usually saturated in three months. At this time, it needs to be replaced with a new one, otherwise the absorbed ions may be released.
3. Bacteria house: Bacteria house is the place to cultivate nitrifying bacteria and the last line of defense for filtration. Nitrifying bacteria can convert ammonia nitrogen in water. These substances come from decomposed fish food and feces, which are toxic to fish. After conversion, they can become nitrate, thus providing nutrients for aquatic plants.
