HomeMarine aquarium fishGobies, blennies & dottybacksMandarinfish Mandarinfish (Synchiropus splendidus) Scientific name: Synchiropus splendidus Herre, 1927 The Mandarinfish (Synchiropus splendidus) is a marine fish of the family Callionymidae. In the aquarium it needs water at 24–26°C (75–79°F). Native range: Western Pacific, Ryukyu Islands to Australia. Mandarinfish care at a glanceTemperature24–26°C (75–79°F) BiologyDorsal spines (total): 4; Dorsal soft rays (total): 8; Anal spines: 0; Anal soft rays: 6 - 8. Rare individuals have a bright red ground color. Preopercular spine 0[2-5/0]1.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameSynchiropus splendidusFamilyCallionymidae (Dragonets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length6.0Depth range1–18 m (3–59 ft)EnvironmentMarine; reef-associated; depth range 1 - 18 m, usually 1 - 18 mClimateTropicalDistributionWestern Pacific: Ryukyu Islands to Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More gobies, blennies & dottybacksYellowhead jawfishOpistognathus aurifronsFire gobyNemateleotris magnificaYellow prawn-gobyCryptocentrus cinctusPersian blennyEcsenius midasMorrison's dragonetSynchiropus morrisoniOblique-lined dottybackCypho purpurascensSee all gobies, blennies & dottybacks SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026