Many people who have aquariums look to create a visually appealing space filled with the most beautiful and colorful fish. The goal is to enjoy the spectacle that these animals offer, both for their vibrant colors and for the gentle movement of their fins when they swim. Among the fish listed as the most beautiful in the world is the Mandarin fish, known not only for its exquisite colors, but also for its fascinating behavior and unique character.
What is the Mandarin fish?
El Mandarin fish (Synchiropus splendidus) is a species native to the Pacific Ocean, especially from the Ryukyu Islands in Japan to the waters around Australia. It is a fish that lives in the coral reefs and shallow tropical lagoons, where it hides among rocks and corals. Its size rarely exceeds 6 centimetres, which makes it even more fascinating given its dazzling appearance and elusive behaviour.
A hypnotic colored fish
The Mandarin fish is known as the psychedelic fish for the visual effects it creates with its combination of bright colors and intricate patterns. Its blue or turquoise body is adorned with vibrant shades of orange, yellow and green. The wavy stripes of these colors, along with dark outlines, make it look like it is hand painted. This peculiarity in its appearance is one of the main reasons why the Mandarin fish is considered one of the most most beautiful fish in the world.
Addition Synchiropus splendidus, there is another variety known as Red Mandarin Fish (Synchiropus tudorjonesi), distinguished by its reddish body with white spots and a yellow belly. The common name of this species comes from the colorful clothes worn by officials of imperial China, called mandarins.
Physical characteristics of the Mandarin fish
This small fish is characterized by having an elongated body, large and prominent eyes, and a pair of dorsal fins that allow it to swim with great skill. Its skin, unlike many other fish, does not have scales, but a slimy layer that protects it from parasites and diseases. This coating also has a characteristic odor that protects it from potential predators.
- Average length: 5 to 8 centimeters.
- Predominant colors: Blue, orange, green and yellow.
- Skin without scales, covered with a protective mucosa.
Natural habitat and behavior of the Mandarin fish
The natural habitat of the Mandarin fish extends throughout the Indian and Pacific Oceans. These fish prefer the tropical lagoons and coral reefs, swimming at depths that usually range between 3 and 18 metres. Their behaviour is particularly curious: they are shy fish that usually hide among the rocks during the day, coming out mainly at dusk or when they are in the process of mating.
These fish can barely survive in recently set-up aquariums, as they depend on microscopic life forms present in reefs for food. It is very important that their habitat is mature and composed of live rocks that generate the microorganisms necessary for their constant feeding.
Aquarium Care
If you decide to keep a Mandarin fish in your aquarium, you should provide a suitable habitat that mimics their natural environment. This includes live rocks and a large number of microcrustaceans which are an essential part of their diet. An optimal aquarium for these species should be at least 300 litres and should be well established, ideally more than a year old to ensure that sufficient microfauna is present.
Mandarin fish have a fussy feeding pattern, preferring live food such as zooplankton and phytoplankton found on live rocks in the substrate. Although they will occasionally consume frozen food, it is not recommended as a primary food source, and they will never accept dry food.
- Minimum aquarium volume: 300 liters.
- Water temperature: between 24 and 27 degrees Celsius.
- Food: preferably small invertebrates; should be frequent.
- Lighting: high.
- Water flow: medium.
Territorial behavior in aquariums
It is important to note that the Mandarin fish has a strong and dominant character, so it is not advisable to keep multiple males in the same aquarium, as this could lead to fights. However, a male can coexist peacefully with several females. In addition, when Mandarins are in pairs, they perform a beautiful courtship dance that is fascinating to watch.
Differences between males and females
One way to distinguish between male and female Mandarin fish is by looking at their dorsal fins. The male has a more prominent and elongated dorsal fin, while females are generally smaller and less colorful than their male counterparts. This difference is especially noticeable during courtship, when the male displays his brightest colors and shows off his extended dorsal fin.
Apparition and courtship dance
The courtship of the Mandarin fish is a unique spectacle in nature. The males, with their prominent dorsal fins, perform a kind of hypnotic dance in the vicinity of the female. This behaviour is more frequent at dusk, when the lights in the aquarium or tropical ocean dim, allowing the intense brilliance of their colours to be appreciated underwater.
Life expectancy and health
In the wild, the life expectancy of the Mandarin fish has not been determined exactly, but in aquariums, this fish can live up to seven years if properly cared for. However, in many cases, keeping it in a poorly prepared aquarium can drastically reduce its life expectancy to less than a year.
Importance of responsible breeding
Despite the fascination with its colours, it is crucial to promote responsible breeding of this fish. Many of the specimens available on the market come from wild captures, which negatively impacts their native ecosystems. Buying specimens from farms is always preferable to avoid the destruction of coral reefs and overexploitation of the species.
The Mandarin fish is a true visual spectacle that captivates those who observe it, but it is also a species that requires meticulous care and a suitable environment to thrive. Its undeniable beauty makes it one of the most Most desired fish for aquariums saltwater, although it is essential that any attempt to introduce it into this environment be accompanied by a serious commitment to its well-being.