TL;DR: A fish tank is a Water symbol that activates wealth, but only when placed correctly and avoiding taboos like the bedroom or kitchen. Core rules: place it in the Southeast (Wealth corner) or North (Career area) and keep the water clean with healthy fish.
Aquarium/Fish Tank Feng Shui: Basic Principles
What is the role of a fish tank in feng shui?
In feng shui, water symbolizes wealth and the circulation of qi. A properly placed fish tank is not only an aesthetic highlight but also a tool to activate positive energy. However, placing a fish tank in the wrong position or caring for it poorly can backfire, creating negative energy that affects the health and fortune of the household.
Principles for choosing where to place a fish tank
What does the Southeast corner mean in fish tank feng shui?
According to residential feng shui principles, the Southeast corner of a house (and also the Southeast corner of each room) is the wealth sector. Placing a fish tank here helps activate the flow of prosperity energy. When you make changes to this area, you should apply them simultaneously to the other rooms in the house to achieve maximum effect.
North direction: Career sector
The North direction belongs to the Water element, and is the sector associated with career and the path of official advancement. A fish tank placed in the northern area of a room or the house will support promotion and new opportunities at work.
Why should a fish tank be placed where it can be seen from the main seat?
If the fish tank is in the living room, place it so that it can be seen from the main seating position (usually the householder's sofa). This creates a sense of reassurance and helps the householder always be aware of the state of the fish tank so they can care for it in time.
Positions that are strictly forbidden when placing a fish tank
Should a fish tank be placed in the bedroom?
Water in the bedroom creates excessively strong yin energy, which can easily cause insomnia, anxiety and affect health. The sound of the water filter also disturbs the quiet needed for sleep.
Should a fish tank be placed in the kitchen?
The kitchen belongs to the Fire element, while a fish tank belongs to the Water element. The Water-Fire clash in this area can cause discord in the family and affect the health of its members. In particular, the moisture from the fish tank can affect food and the cooking space.
Why should a fish tank not be placed under an altar or directly opposite the main door?
Do not place a fish tank under an altar, as it creates a feeling of disrespect. Placing a fish tank directly opposite the main door causes wealth to be pushed outside instead of being kept in the house.
How should the shape and size of a fish tank be chosen?
Which fish tank shapes are suitable according to feng shui?
Rectangular or round fish tanks are favored because they create balance and blend easily with the other elements. Avoid sharp, pointed corners because they create killing energy. Triangular or uneven polygonal shapes are recommended to be avoided.
How should the size of a fish tank be proportionate to the space?
A fish tank should not be too large relative to the room's area, as it will create a feeling of being overwhelmed and cause the flow of qi to stagnate. A moderate size, proportionate to the space, helps maintain harmony and makes regular cleaning easier.
What number and species of fish should be kept?
How many fish are commonly kept in a feng shui tank?
According to folk belief and feng shui, the number of fish is usually chosen for its lucky meaning:
| Number | Feng shui meaning |
|---|---|
| 1 | Taiji, a new beginning, rarely used |
| 2 | Happiness for a couple, double joy |
| 3 | Tam Đa (Prosperity, Wealth, Longevity): very good |
| 6 | Lộc (in Sino-Vietnamese, "lục" is close in sound to "lộc", meaning wealth) |
| 8 | Phát (in Sino-Vietnamese, "bát" is close in sound to "phát", meaning to prosper): extremely lucky |
| 9 | Trường cửu, eternity |
Which fish species should be chosen for a feng shui tank?
Flowerhorn fish, Blood Parrot fish, and Arowana (Golden Arowana) are favored species because of their striking colors and graceful swimming posture. Guppies, goldfish, and small Koi are also good choices because they are easy to keep and bring liveliness. Avoid keeping aggressive fish, fish with venomous spines, or fish that die frequently, as they create negative energy.
How should colors and decorations for a fish tank be chosen?
What effect do the colors of the fish and the tank have?
The red, orange, and yellow colors of fish symbolize Fire and help activate energy. The black or dark blue colors of fish symbolize Water and strengthen the wealth factor. Combining both color groups in a fish tank helps balance the five elements.
How should decorations in a fish tank be chosen?
White or light gray gravel at the bottom of the tank symbolizes the Metal element and supports strong Water. Aquatic plants symbolize the Wood element and create vitality. Avoid placing too many decorations that obstruct the fish's swimming paths and reduce the aesthetics.
How can the five elements be balanced in the space where a fish tank is placed?
A harmonious fish tank needs to be combined with the surrounding elements. A brown floor (Earth) near the fish tank can be balanced by adding metal details (Metal), such as a chrome-plated tank frame, or green plants (Wood) placed beside the tank. This balance helps the overall space feel pleasant and avoids clashes.
What are the principles for caring for and maintaining a fish tank?
How can the fish tank water always be kept clean?
Cloudy, dirty, or smelly water is a sign of stagnant energy. Changing the water periodically and regularly cleaning the tank and filter are mandatory requirements. A clean fish tank is not only good for the fish but also ensures the positive circulation of qi.
How should the health of the fish be observed?
Fish dying continuously or swimming abnormally can be a sign of an unsuitable environment or a wrong placement. If this condition persists, consider moving the fish tank to another position instead of trying to keep it where it is.
What is gradual adjustment?
When first placing a fish tank or changing its position, observe for at least one month to monitor changes in how the space feels and in the health of the fish. Gradual adjustment helps you easily recognize what suits your home.
