The sunken wood in fish tank is suitable for raising some fish that like weak acidic water quality, such as fairy fish, colorful fish, South American snapper and so on. Sinking wood is a common fish tank landscaping, which can play a role in regulating the ph of water body, and also has good ornamental value. It should be noted that if sunken wood is put directly into the fish tank without treatment, it will cause the water body to turn yellow. Although it is not harmful to fish, it does not look very beautiful.

1. Adjusting ph: Putting sunken wood in fish tank can adjust ph. Compared with many drug adjustments, the way of changing water quality by sunken wood is slow, but it is relatively stable, and it is not easy for fish to have adverse reactions. It can make water acidic, which is very good for many fish that are suitable for growing in weak acidic environment.

2. Enhance aesthetic feeling: Sinking wood is also a very good scenery. Placing it in a fish tank can greatly increase aesthetic feeling, giving people the feeling of being like a natural environment. It is best to match some Stone and bottom sand, or plant some aquatic plants, but arrange the quantity according to the size of the tank to leave a certain space for fish to move.

3. Provide shelter: For some fish who like to live underwater, sunken wood can also provide shelter for them, and it is convenient for them to enter when they feel threatened, and it is also convenient for them to rest.