At the same time, the fish tank should not be placed below the knee, forming a state of treading water, which will flush money. In geomantic omen, the fish tank is a tool for supply. If properly placed, it can play a very good role in exorcising evil spirits and attracting wealth. If you are a person who is short of water on the date of birth, you can make up for it by raising fish. On the contrary, people who avoid water in their birthdays should not raise fish to prevent the loss of wealth. In addition, the fish tank can't be placed behind the sofa, because the fish tank is filled with water, and the water is unreliable.