Scientific Name: Pterosynchiropus splendidus
Family: Callionymidae
Common Names: Mandarin Dragonet, Mandarin Goby, Green Mandarinfish. Stripped Mandarinfish, Psychedelic fish
Description:
The Mandarin Dragonet can simply not be confused with any other fish. It has arguably the most attractive coloration and pattern of any commonly kept reef fish. The scale-less body of the fish is a blue or green color which has orange wavy lines across it. The tail is bright red with blue edging. Other colors can be found in the pattern as well. These fish are also sometimes called Psychedelic fish due to its rather bizarre coloration. The male Mandarin tends to be larger than the female and has a large pointed dorsal fin that is only rarely displayed. Although commonly called Mandarin Goby, they are in fact not gobies, but rather belong to the family known as dragonets.
Natural Environment:
Comes from the Philippine area and westward to Australia. Found in groups or pairs, often on sandy bottoms between reef crests.
Care:
Reef Suitability: Mandarin fish are one of the most commonly sold fish, yet they are unfortunately one of the most likely to perish in the average reef tank. The reason for this is their very finicky feeding habits. Many mandarins will only eat live amphipods and copepods (pods) which are found in sufficient numbers only in larger and well established reef tanks. The minimum tank requirement is generally stated as 55 gallon with 50lbs or more of live rock. This is based on feeding requirements and not space requirements as the Mandarin is a very slow, docile fish. Perhaps more important than tank size is how heavily fed and nutrient rich a tank is, since this type of tank will generally support a higher pod population than tanks run under more lean conditions.
Disposition: Very non-aggressive to other fish and other fish seem to pay them no attention. 2 males will fight, so they should only be kept singly or in male/female pairs. Mandarins spend their days carefully checking over the live rock and sand looking for tasty tidbits to eat.
Feeding: As noted above, feeding can be a major issue with Mandarins. Some will take foods such as frozen brine shrimp and bloodworms. Others will refuse to take anything but live foods. Mandarins are extremely slow and hover, much like a hummingbird using their front fins while looking for food. Even Mandarins that take prepared foods have a hard time competing with faster fish for the morsels. One suggestion I have heard that makes good sense, especially in smaller tanks that don't support a large pod population is to build something called a 'pod pile'. This is a few small rocks stacked into a pile into which small pieces of shrimp or similar food can be inserted every couple of days. This pile of rocks provides shelter and a food supply for the pods which allows them to rapidly breed and provide food for the Mandarin.
Hardiness: Very hardy under the right conditions when starting with a healthy specimen which is feeding. They seem to be very resistant to parasitic diseases such as Ick, apparently due to their thick slime coating. Unfortunately, most Mandarins are kept under conditions in pet stores that cause them to slowly starve. Look for sunken bellies before purchasing. Some specimens seem to waste away to the point where they cannot survive, even when put into good conditions. If possible, select a specimen that is eating fozen food.
Temperature: Does well within normal reef tank temperature ranges of at least 76-82°F.
Size: Mandarins can get up to about 3" in length.
Breeding: Mandarins have reportedly spawned in reef tanks. The fry are very small and require a first food which is smaller than rotifers. The picture above shows a male and female pair. The male is in full display mode while courting the female. |
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