The Mandarin Dragonet (Synchiropus Splendidus) are one of the most breathtaking fishes found in the hobby. Blue, green and orange lines and patches are intricately painted onto this spectacular fish. They commonly go by the name, mandarin goby, despite not being a true goby at all. The mandarin dragonet is its true name.
The mandarin dragonet is heavily collected from the Indo-Pacific. Despite its popularity, they do very poorly in captivity. I will touch on this later.
As far as temperament goes, they are very peaceful fish. They are aggressive only towards other members of the genus such as the scooter dragonets. If you're interested in a pair of mandarin dragonets, buy a female and a male (elongated first dorsal spine) and introduce them together in the tank.
Fully grown mandarins come in a about 4 inches in length. A 30 gallon aquarium has enough space for a single specimen, only if you can get them to eat. Getting them to eat prepared foods is a real challenge. Copepods in the wild are all they eat. Therefore, they need a tank full of live copepods, something like a 75 gallon established aquarium. In an aquarium that large, you'd never have to feed them. The copepod populations in the tank will sustain them.
If you don't have a tank that large but are still keen on a mandarin fish then you need to train it to eat prepared foods.You'll need live adult artemia to accomplish this task. They eat live brine shrimp with ease, just put in the artemia. Next, introduce some frozen artemia with the live ones during your next feeding. Once they start taking frozen artemia the task is half done. You need to get them on something nutritious like mysis shrimp, brine shrimp is junk food.
As before, slowly introduce some mysis in with the frozen artemia. The deed is done once they start taking mysis shrimp. You should try and get them other foods such as a good pellet and krill.
But wait, thats just one problem out of the way. They are painfully slow feeders. Every single one of their tank mates will eat twice as fast as a mandarin. This problem can be solved in three simple ways. You could foul up your aquarium by feeding so much food that there's bound to be some the mandarin can eat. Or, you can spot feed it with the use of a pipette. Lastly, you can find a bottle with an entrance only big enough for the mandarin and stuff some food in there.
All three options can work, but its up to you to choose one.




