Without a doubt, a pair of vibrant and striking mandarin fish can instantly elevate any marine aquarium into a mesmerizing centerpiece, turning it into a true showstopper. That said, the Synchiropus gorgeousus, commonly known as the mandarin dragonet, is among the most challenging species to care for in the realm of home aquariums. To provide these captivating creatures with a thriving and fish-friendly environment, it is essential to have not only a meticulously designed and well-maintained aquarium setup but also prior experience in aquarium management. Their unique needs require a skilled hand and thorough understanding of marine ecosystem dynamics, making them an excellent choice for seasoned aquarists seeking to elevate their aquatic hobby.
The Synchiropus Gorgeousus or Pterosynchiropus Splendius belongs to the Callionymidae family and is therefore also known as Mandarin Lyrefish or, scientifically not entirely correct, simply Lyrefish. The lyrefish related to the perch form a group of about 20 genera and about 190 species. What all lyrefish have in common is that they are elongated, scaleless bottom fish. Almost all species have two dorsal fins, the first of which is often larger and more colorful in males than in females. The pelvic fins of the lyrefish are very large, widely spaced and are used for support when resting on the seabed.
Like lyrefish, the mandarin fish also has no scales; instead of scales, it has solid skin covered with a layer of mucus, which offers protection against diseases and parasites and makes it relatively unappetizing to potential predators. By the way, when it comes into contact with the air outside the water, this layer of mucus releases an unpleasant odor.
Instead of scales, the skin of the mandarin fish is covered with a layer of mucus, which is intended to protect it from parasites, diseases and predators.
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Its colorful appearance, its amazing way of moving and its interesting diet make the mandarin fish an extremely attractive inhabitant of your marine aquarium. In our profile you can discover everything you need to take into consideration when raising this demanding pet in a fish-friendly way.
Origin
The mandarin fish’s home is in the Indo-West Pacific; its preferred habitats extend from the Philippines, Japan and Sri Lanka to Australia. It is found mainly in protected lagoons and coastal coral reefs and can be observed in water depths of almost 20 meters, although it is often found in shallower water depths. In its habitats it often seeks proximity to sandy or muddy bottoms, where it feels particularly at ease and spends the day looking for food. However, he also likes to hide among stones or corals.
Behave
The mandarin fish impresses above all with its locomotion, because it does not move through the water seemingly weightlessly like many other fish, but stays near the bottom most of the time, so that its pelvic fins are in constant contact with the seabed. It uses its fins to suddenly propel itself and then move slowly in a gliding motion. However, if danger looms, it can dart away very quickly to seek protection.
Mandarin fish do not glide weightlessly through the water, but use their fins to propel themselves forward in gliding motions.
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As so-called permanent feeders, mandarin fish spend much of their day searching for and consuming food, sometimes taking all the time in the world. If you watch a mandarin fish eat, you may be reminded of a bird. Because just like that, the Synchiropus Gorgeousus seems to peck at its prey with its small mouth that resembles a beak.
Fish-friendly accommodation and assistance
Thanks to their colorful appearance, mandarin fish have now become very popular inhabitants of a marine aquarium, so much so that the supply of offspring cannot always meet the demand and wild-caught fish can also be found in the trade. Wild captures often not only threaten the existence of a species, but can also cause considerable damage to the surrounding environment. Therefore, in the interests of a sustainable marine aquarium, you should always ensure that the inhabitants of your underwater world come from descendants. Even the small ones are often considered more robust because they are already sufficiently acclimatized to the living conditions of the aquarium and, in the case of mandarin fish, they are also more adapted to their eating habits.
To provide your mandarin fish with the most perfect living conditions possible in your underwater landscape, it is important to find the right time to introduce the exotic, colorful beauties and practice patience. Your aquarium should be very well set up and provide your mandarin fish with a sufficient amount of food via a well-developed population of microorganisms. It is recommended to wait up to a year for mandarin fish to move into your underwater world.
Your mandarin fish usually only reach a body size of up to 10 cm, but despite their unusual swimming style, they are quite active and happy to move around, so they should have enough space available. Your underwater world should therefore have a volume of 450 l. The temperature should be between 24° and 27° C and the pH value between 8.1 – 8.3, the overall hardness should show a value between 7° and 14° dGH.
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Of course, the design of your underwater landscape should best reflect the living conditions of your mandarin fish’s original habitats. In addition to sufficient space for swimming, corals are an absolute must. A sandy bottom with stones offers your lyrefish optimal conditions for searching for food. Additional stone and root structures serve as perfect places to retreat and hide, and create places for your mandarin fish to rest so they can peacefully observe what is happening in your underwater landscape.
Mandarin fish enjoy the company of their fellow fish, so they should always come into your aquarium in pairs. Be careful never to put two males in your tank, as they will kill each other in strong territorial fights. Furthermore, females often do not get along with each other, so keeping them in pairs turns out to be the only possible way to maintain them. Socialization with other lyrefish is also not recommended, as fighting to the death can occur in this constellation.
Nutrition
When it comes to their diet, mandarin fish are very demanding in your aquarium and therefore demanding to keep. Being so-called permanent eaters, they spend most of the day eating food, so multiple feedings are needed every day. Furthermore, mandarin fish feed almost exclusively on live food and only in exceptional cases can frozen food be used. A well-set up aquarium with well-developed microfauna is of fundamental importance in order to satisfy the nutritional habits of your mandarin fish. As in nature, the diet of Synchiropus splendidius usually consists almost exclusively of small live animals, such as: B. Artemia, Enchytraen, Gammarus, copepods or saltwater fleas. Mandarin fish only very rarely get used to frozen food, but once bred, the chances of them becoming resistant to the food are often higher.
Playback
Mandarin fish mating is a real spectacle of swirling colors: at dusk, the male swims around his chosen lady and tries to convince her of the seriousness of his courtship with bold flapping of his fins. If he has managed to attract the attention of the chosen one, he leads her belly to belly towards the surface of the water, then sinks again and rises with her, this time side by side. Through this behavior, the pair synchronizes their movements in preparation for the actual egg-laying process. The fish now bring their anal fins together to form a groove: this is where the eggs are laid and fertilized. Now the couple separates again and sinks towards the seabed again.
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The spawn also floats down. The larvae hatch after just 24 hours and initially live pelagically, that is, freely in the water, before moving after two or three weeks to a lifestyle hugging the seabed and linked to the coral reef. It is only around the age of three months that the typical body coloration of mandarin fish is complete and the fish now resemble miniature versions of their parents.
Questions and answers about mandarin fish
1. Where does mandarin fish live?
The mandarin fish’s native habitats extend from the Philippines, Japan and Sri Lanka to Australia. As bottom fish, they live near sandy and muddy bottoms, so they can sometimes be found up to 20 meters deep. Its favorite habitat is coral reefs where it loves to hide; even stones offer him suitable hiding places and shelters.
2. When should you use mandarin fish?
Before introducing a pair of visually unusual lyrefish into your underwater world, they should be well established and have consistently good water parameters. Therefore it is best to be patient and wait at least six months, but preferably a full year, before your mandarin fish can relocate. A well-set up aquarium with adequate microfauna is also necessary to support your mandarin fish as long-term feeders in their eating habits and to keep them satiated. There should therefore be a sufficient population of small crustaceans to provide your exotic marine creatures with an adequate and sufficient food source.
3. How many years does a mandarin fish live?
Mandarin fish are among the most demanding animals to keep in a marine aquarium and therefore unfortunately often do not live more than a year. Their maintenance is therefore not recommended for beginners, but for advanced users with previous aquarium experience. With good care and fish-friendly accommodation that meets the needs of sensitive mandarin fish, they can achieve a significantly longer lifespan of several years, even in your underwater world.
4. What does a mandarin fish look like?
No description can do justice to the extravagant appearance of the mandarin fish: its skin shines in a strong shade of blue to turquoise and is crossed by reddish and brown stripes, and on the head there are also color zones from bright green to yellow. Another peculiarity of the mandarin fish is certainly the lack of scales. Instead of scales, the eye-catching lyrefish has tough skin covered in a layer of mucus that protects it from parasites, disease and many potential predators. When this skin comes into contact with outside air, it emits an unpleasant odor
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