Spotted Mandarin Dragonet

Synchiropus picturatus

Also known as Psychedelic Mandarin, Green Spotted Mandarin, Picture Dragonet, Target Mandarin

SaltwaterFish

Care at a glance

Temperature
75–81°F (24–27°C)
pH
8.1–8.4
Adult size
2.8 in (7 cm)
Minimum tank
29 gal (110 L)
Temperament
Peaceful
Social behavior
Solitary
Swim level
Bottom
Difficulty
Difficult
Breeding
Hard
Rarity
Common
Reef safe
Reef safe
Origin
Western Pacific and eastern Indian Ocean, from the Philippines and Indonesia to western Australia
Family
Callionymidae

Overview

A peaceful, slow bottom forager with the same demanding pod-based diet as the green mandarin, which makes it an expert-level fish. Success depends on a well established tank rich in live copepods and amphipods, usually backed by a refugium or regular pod dosing. Captive-bred or frozen-trained individuals are much easier and strongly preferred over wild fish that eat only live pods. It is fully reef safe with corals and inverts, but keep only one male per tank because males fight.

In the wild

The spotted mandarin lives on the same kind of sheltered inshore reefs and rubble zones as the green mandarin, patrolling the sand and rock all day to pick off amphipods and copepods. It is a slow, methodical bottom grazer. It needs a mature reef with a large amount of live rock and live sand supporting a dense pod population, and a refugium helps keep that food supply topped up. It stays close to the substrate and rarely enters open water.

Good to know

Synchiropus picturatus is told apart from the green mandarin by its bold green, blue-ringed target spots (ocelli) on a darker background rather than maze-like stripes. Like its relative it has no scales and produces a thick, foul-tasting mucus coat that deters parasites and predators. Males grow larger and carry a taller first dorsal fin.

Did you know

The blue in a mandarin comes from a rare true blue pigment in its skin cells rather than the structural coloration most fish use, so the spotted mandarin is one of very few animals that manufactures its own blue color.

Appears in

Saltwater fish · Advanced fish · Reef-safe fish

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