HomeFreshwater aquarium fishOther freshwater fishBlackfin coralfish Blackfin coralfish (Chelmon muelleri) Scientific name: Chelmon muelleri Klunzinger, 1879 The Blackfin coralfish (Chelmon muelleri) is a brackish-water fish of the family Chaetodontidae. Native range: Western Pacific, found exclusively on coastal reefs and estuaries of Queensland. Recently recorded from northwestern Australia. BiologyDorsal spines (total): 9 - 10; Dorsal soft rays (total): 26-30; Anal spines: 3; Anal soft rays: 18 - 21Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameChelmon muelleriFamilyChaetodontidae (Butterflyfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length20.5EnvironmentMarine; brackish; reef-associated; non-migratoryClimateTropicalDistributionWestern Pacific: found exclusively on coastal reefs and estuaries of Queensland. Recently recorded from northwestern Australia.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More other freshwater fishSouth American lungfishLepidosiren paradoxaLined soleAchirus lineatusPumpkinseedLepomis gibbosusShort-tailed pipefishMicrophis brachyurus brachyurusFinescale tigerfishDatnioides microlepisFreshwater garfishXenentodon cancilaSee all other freshwater fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026