Goldfish and Feng Shui make a near-perfect pair : beauty, movement, and a powerful symbolic connection to prosperity, protection, and harmony in the home. Beyond mere decoration, a well-designed aquarium can become a true magnet for positive energy, provided certain traditional principles are followed.
At the same time, we mustn't forget that we're talking about living beings , not just amulets. Feng Shui philosophy emphasizes balance and respect for life, so the care of the aquarium, the cleanliness of the water, and the well-being of the fish are just as important as the orientation, number, or color of the tank's inhabitants.
Goldfish and Feng Shui: why they are considered a symbol of good luck

In the classical view of Feng Shui, water is one of the ultimate symbols of wealth . Its fluid and ever-changing nature represents the continuous movement of money, opportunities, and relationships that enter and leave our lives. When water is clean and flowing, it is understood that prosperity also flows freely.
Fish, for their part, symbolize abundance, success, and fertility . In Chinese, the word for fish, "yu," sounds the same as the term for surplus or excess, that is, abundance that exceeds what is needed. Hence, the combination of water and fish is associated with stable wealth, good fortune, and achievements in various areas.
When we combine these two elements, a living system of positive energy is created : the water provides the "stage" for prosperity, and the fish activate that potential with their constant movement, keeping the Qi (vital energy) circulating in the room. This is why aquariums and fish tanks appear so often in the entrances of restaurants, businesses, and homes where people want to boost their financial luck.
Furthermore, aesthetics also play a role in Feng Shui . A balanced aquarium, with colorful fish, live plants, rocks, and gravel, is considered a "living treasure" that integrates various elements (Water, Wood, Earth, Fire, and Metal) and brings beauty, calm, and dynamism to the decor.
Meaning of the most commonly used fish in Feng Shui
Not all fish transmit the same energy , either symbolically or practically. Some species have very specific meanings within classical Feng Shui, while others are more recommended for their ease of care, especially for beginners in the world of aquariums.
Goldfish : This is a classic Feng Shui symbol. Its name associates "gold" with "happiness," and it's considered a symbol of wealth, general good fortune, and positive outcomes in new projects. Its golden and orange colors represent the Fire element, which activates prosperity. Furthermore, they are relatively inexpensive, easy to find, and simple to care for, making them perfect for beginners.
Carp and koi fish : Carp are associated with the famous legend of the koi carp, in which two carp swim upstream, battling a strong current until they cross the so-called Dragon Gate. Upon succeeding, they transform into dragons, becoming an emblem of perseverance, effort, and overcoming obstacles. For this reason, they are considered ideal for students and people who want to excel in exams, studies, or long-term goals, as well as for strengthening marital harmony when placed with a couple.
The arowana, or dragon fish , sometimes called the "lucky fish," is one of the most powerful symbols of wealth and status. Its elongated body and scales resemble a dragon, a figure of power in Chinese culture. It is said to attract financial prosperity and protect against bad luck. However, it's not a fish for everyone: it can grow quite large, requires a very large tank, good filtration, and experience in aquariums, in addition to being expensive and not always easy to find.
Black Moor and black fish : Far from being unlucky, black fish play a protective role . They are believed to absorb negative energy and act as guardians of the group. Their color is associated with the element of Water and the ability to "swallow" misfortunes before they reach the family. It is common to combine them with red or goldfish to balance wealth and protection.
Guppies : These are lively, very active fish that reproduce easily. In Feng Shui, this reproductive capacity translates into energy of fertility, growth, and creativity . Their vibrant colors bring a cheerful and very yang (active) touch to the aquarium, making them a good choice for young households or growing families.
Angelfish : With its elegant and leisurely swimming, it is associated with peace and harmony in the home . Its gentle movements help to calm the Qi of the environment, which is very useful in homes with tension or frequent arguments. Combined with goldfish, they can also bring a touch of tranquil prosperity.
Plecostomus, or cleaner fish : more than just good luck charms, they represent cleanliness and stability. By feeding on algae and waste, they help keep the tank clear, which symbolically equates to removing blockages and negative energy . They are a good addition to Feng Shui aquariums, as they take care of the "bottom" of the system without stealing the show.
The betta fish and its role in home Feng Shui
A special case is the betta fish, or Siamese fighting fish . These fish are solitary by nature, territorial, and very striking, with broad fins and vibrant colors. In Feng Shui, they are associated with an energy of strength, protection, and tenacity , suitable for those who want to strengthen their character or overcome a difficult period.
In practical terms, the betta is known for being a relatively easy fish to care for , provided certain minimum conditions are met: clean water, without sudden changes, a stable temperature, adequate lighting, and proper feeding. It doesn't need extremely complex decorations to thrive, but it does require a reasonable amount of space and good quality water.
If you want to keep more than one betta, you must be extremely careful: they don't usually tolerate each other , especially the males, who fight easily. A fairly common urban option is to use divided tanks or aquariums with compartments, where each fish has its own independent space. Even so, it's important that each compartment has sufficient volume and that the environment doesn't feel claustrophobic.
In any case, a fish being "lucky" from a Feng Shui perspective is useless if it's kept in poor conditions. True prosperity begins with the animal's well-being : clean water, good filtration, adequate volume, and a balanced diet.
Number and color of fish: most favorable combinations
One of the key points of Feng Shui applied to aquariums is the numerous de peces and the color combinationThey are not chosen at random: each number has a specific vibration and each tone is related to different elements of the five elements cycle (Water, Wood, Fire, Earth and Metal).
Numbers considered lucky for an Aquarius Feng Shui:
- 1 fish: beginning, focus, and new path. It is usually reserved for especially powerful fish, such as a unique Arowana or a betta that acts as a personal symbol of strength.
- 3 fish: growth and vitality number. In Cantonese it sounds similar to "life" (sheng), so it is associated with expansion, development and projects that start off on the right foot.
- 6 fishGood "heavenly" luck and help from mentors. It conveys a sense of fluidity and ease in work or financial matters.
- 8 fish: perhaps the most famous number of fortune, linked to the idea of prospering and generating wealth continuously.
- 9 fish: the highest degree of good luck and fulfillment. It is the number of the emperor, associated with long life, consolidated success, and protection.
Many schools recommend a total of 9 fish as a standard combination: it's a powerful yet manageable number for a medium-sized home aquarium. If the tank is larger, you can experiment with multiples of 9 (18, 27, etc.), always adjusting to the actual volume available.
In small aquariums where nine fish are impossible without overloading the system, it's advisable to choose odd numbers (3, 5, 7) to maintain an active and expanding energy. The essential thing is that the aquarium can healthily support its inhabitants; filling a tiny tank with too many fish simply to "follow numerology" is both an ethical and energetic mistake.
As for the colors, reds, oranges, and golds are the main protagonists . They represent the element of Fire and are associated with prosperity, renown, and joy. Goldfish, orange koi, or other brightly colored species activate wealth and add a dynamic spark to the room.
Far from being negative, the color black acts as a shield. A black fish in the group acts as an "absorber" of bad luck, preventing financial setbacks or external envy from having a significant impact on the family. This duality of wealth (red/gold) and protection (black) is one of the pillars of aquatic symbolism in Feng Shui.
Combination recipes de peces for different purposes
Based on these basic rules, many Feng Shui practitioners propose standard combinations or "recipes" that mix species, numbers, and colors with specific goals. While not magic formulas, they do help to focus intentions.
1. Classic combination of wealth and protection
Objective: to maximize economic prosperity while simultaneously protecting finances against unexpected losses or sudden changes.
Typical formula: 8 red or goldfish + 1 black fish (for example, 8 warm-toned goldfish and 1 Black Moor). The number 8 activates success and wealth; the goldfish generate a "whirlpool" of prosperous energy, while the black fish neutralizes any negative energy that might affect the household finances.
2. Combination for professional advancement and career
Objective: to stimulate career growth, promotions, new contracts, or a smoother career path.
A common choice is to use six fish associated with effort and ambition , such as koi (in aquariums or large ponds) or red-tailed guppies in smaller tanks, accompanied by a cleaner fish (Plecostomus). The number 6 attracts external help and opportunities, the koi symbolize persistence in the face of challenges, and the cleaner fish maintains a stable environment, clearing both physical and energetic obstacles.
3. Combination for family harmony
Objective: to reduce conflicts at home, ease tensions and foster a calm and loving environment among family members.
A popular recipe combines 3 angelfish with 2 goldfish . The angelfish, with their calm swimming, bring a strong energy of peace; the number 3 reinforces the idea of family and shared growth. The 2 goldfish add a touch of success and shared joy, making a total of 5 fish, a number that represents the balance between the five elements, a good symbol of domestic stability.
Where to place the fish tank according to Feng Shui
The location of the aquarium is just as critical as its contents. A beautiful tank in the wrong place may not work or may even have the opposite effect of what is desired. To choose the right spot, a compass and the Bagua map, which divides the home into energy areas, are used.
Generally speaking, water nourishes the Wood element, so Wood sectors and those related to running are usually the most recommended for goldfish. These are the most favorable areas:
- Southeast (Xun): area of wealth and economic successIt's the classic symbol of prosperity within the home. An aquarium here directly reinforces material abundance, provided the water remains clear and moving.
- North (Kan): career area and life pathThis sector is governed by the element of Water itself, so a well-maintained aquarium in the north can help to break through work stagnation, attract new job offers, clients or projects, and provide stability to your career path.
- East (Zhen): Health and Family AreaIt belongs to the Wood element, so the aquarium water acts as an energetic fertilizer for family harmony, physical well-being, and the growth of the household members.
If we consider specific rooms, the entryway and living room stand out as particularly favorable locations . In the entryway, a clean fish tank symbolizes that energy begins to flow and purify itself as soon as you cross the threshold, sending a positive message about the home and its inhabitants. In the living room, the aquarium adds dynamism, movement, and a balance between calm and decorative style.
However, there are also areas that are clearly not recommended from a Feng Shui point of view, no matter how "pretty" they may look in practice:
- BedroomThe aquarium generates a very yang energy, active and constantly moving, while the bedroom requires a yin environment, calm and secluded to promote rest. It is believed that a tank in this room can disrupt sleep, generate restlessness, and even cause conflicts between partners.
- KitchenThe kitchen is the realm of Fire (stoves, oven, etc.). Placing a large Water element, such as a fish tank, creates a Water-Fire clash, which often results in arguments, family instability, and financial problems.
- BathroomBesides the practical issue of humidity and cleanliness, the bathroom already has a lot of energy from moving water and drainage. An aquarium here could be considered a waste of good energy down the drain.
- Under beams or in the exact center of the houseA heavy beam above the aquarium creates a feeling of pressure that can be symbolically applied to finances or health. In the center of the home, an area associated with Earth, Water tends to destabilize the energetic heart of the house.
- Immediately to the right of the main door (Looking from the inside out): Some traditional views warn that this position can encourage the man of the house to have affairs, giving him a reputation as a "womanizer." It sounds more like a friendly superstition, but it's usually avoided just in case.
In either case, it's crucial that the fish tank isn't disproportionate to the space . A huge aquarium in a tiny entryway can create a visual sense of weight or instability; ideally, it should fit naturally within the size and layout of the room.
Ideal material, shape and size of the fish tank
People often wonder if the shape of the tank matters as much as the number or orientation. From both a practical and Feng Shui perspective, the material of the fish tank is usually more relevant than its shape.
It is recommended to use glass or crystal aquariums rather than plastic ones. Glass is an excellent conductor of Qi and integrates well into any elemental scheme, while plastic is more associated with the Fire element, which clashes with the Water element of the aquarium. Although a plastic aquarium isn't inherently "cursed," it is considered less energetically harmonious.
In terms of shape, round fish tanks are associated with Metal , which in turn nourishes Water, making them a good choice, for example, in business entrances or offices. Rectangular tanks are also acceptable, especially if they integrate well with existing furniture or structures. The important thing is that the overall arrangement doesn't create harsh corners or a sense of imbalance.
Regarding size, Feng Shui often says that the larger the water volume, the greater the potential for prosperity . However, this should be taken with a grain of salt: a large, poorly maintained tank is worse than a small, immaculate one. A modest tank with good filtration and healthy fish is always preferable to a neglected, cloudy monster of hundreds of liters.
The death of a fish and the meaning of dirty water in Feng Shui
One of the most common fears when starting to apply these principles is: “If one of my fish dies, does it bring bad luck?” Classical texts and many experts agree that there's no need to obsess over it. In fact, it's believed that when a fish dies in a Feng Shui aquarium, it may have absorbed and neutralized a misfortune that was destined for one of the inhabitants of the house.
In that reading, the fish acts as a “sacrificed protector”The recommendation is usually to remove it respectfully, symbolically thank it for its role, and replace it with another healthy specimen to maintain the favorable number. de pecesThe important thing is to avoid drama and, while we're at it, check the water conditions in case there's a real maintenance problem.
When the water becomes cloudy, greenish, or smells bad, the message is quite clear: there is stagnant or contaminated Qi . On a practical level, it probably means there's insufficient filtration, an excess of nutrients, or over-illumination of the tank, leading to an overgrowth of algae. On a symbolic level, it can indicate that finances are becoming chaotic, that there are obstacles being avoided, or that the energy of the home has become filled with "noise."
The ideal solution combines physical and energetic approaches: partial water changes, cleaning the glass, and checking the filters , along with a small tidying and decluttering exercise in the room where the aquarium is located (throwing away old papers, organizing shelves, ventilating). The idea is that the external cleaning supports the internal cleansing of the situation.
If the fish appear lethargic, hide, or swim with difficulty, the first step is always to check basic water parameters (ammonia, nitrites, nitrates, pH) and rule out health problems. If everything is fine, there may be excessively low or depressed energy in the area . In these cases, it helps to provide more natural light, fresh air, remove broken or heavy objects that are cluttering the environment, or, if possible, move the aquarium to a more favorable location such as the north or southeast.
Fish-free options: paintings, mobiles, and symbolic decorations
Not everyone has the time, desire, or means to care for an aquarium. In those cases, Feng Shui offers symbolic alternatives that allow you to integrate the energy of the fish without the need for complex maintenance or responsibility for living beings.
Some common ideas are:
- Paintings or sculptures de peces, in wood, ceramic or metal, placed in areas of wealth, business entrances or offices.
- Children's drawings with fish, made by the children or nephews themselves, which also add the innocent and creative energy of the little ones in the house.
- Decorative mobiles or hangings with fish, placed near windows or spots with some breeze so that the movement activates the Qi of the place.
In all these cases, what matters is that the image evokes joy, life and abundanceavoiding sad scenes or de peces trapped in tiny spaces. While they don't completely replace a real aquarium, they do serve as a symbolic reminder of the flow of wealth and the importance of keeping it moving.
In short, goldfish and Feng Shui form a powerful combination as long as symbolism and common sense come together: choosing species that suit your means, taking care of the water as a reflection of your own prosperity, placing the tank in favorable sectors, and maintaining an orderly and harmonious environment will ensure that your aquarium not only looks beautiful but also becomes a silent ally for wealth, peace, and protection for your home.