Filter cotton is a tool that we often use in the process of fish farming. They may become yellow after a period of use. This is because the filter cotton is used by the body to block impurities in the water, after absorbing certain impurities and bacteria, they will turn yellow. After yellowing, they need to be cleaned up in time, when their filtering effect is not good.
In the process of using the filter cotton, they need to be cleaned regularly. If they are not cleaned for a long time, their filtering effect will be greatly affected, so it may have a certain impact on the water quality in the fish tank. Specifically, the cleaning of filter cotton includes the following two aspects:
1. Cleaning of physical filter cotton: Generally speaking, physical filter cotton is dirty and needs to be cleaned frequently. The cleaning process of physical filter cotton is relatively troublesome, because it may contain more impurities. In addition, considering that there will be a lot of nitrifying bacteria on the filter cotton, if all the filter cotton is cleaned once, it will lead to a greater change in the bacterial state in the water, and also lead to a greater change in the water quality, so it is recommended to clean only a part of the filter cotton each time, not all of it.
2. Cleaning of biochemical filter cotton: Cleaning of this filter cotton is relatively easy, because the impurities on it are generally less. You can just dip them in water and pinch them a few times. Note that there will be more beneficial bacteria on it, so it can not be washed particularly clean, otherwise it will cause greater harm to the beneficial bacteria system in the fish tank.
