HomeFreshwater aquarium fishOther freshwater fishCarpet eel-blenny Carpet eel-blenny (Congrogadus subducens) Scientific name: Congrogadus subducens Richardson, 1843 The Carpet eel-blenny (Congrogadus subducens) is a brackish-water fish of the family Pseudochromidae. Native range: Indo-West Pacific, Nicobar Islands, Andaman Sea and Japan to the tropical coasts of Australia. BiologyInhabits coastal waters, often in brackish conditions. Found hidden amongst rocks or coral rubble. Reproductive activity appears to be cyclical and the species may not be a protogynous hermaphrodite.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCongrogadus subducensFamilyPseudochromidae (Dottybacks)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length45.0Depth range6 m (20 ft)EnvironmentMarine; brackish; reef-associated; depth range ? - 6 mClimateTropicalDistributionIndo-West Pacific: Nicobar Islands, Andaman Sea and Japan to the tropical coasts of Australia.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercial More other freshwater fishLined soleAchirus lineatusPumpkinseedLepomis gibbosusShort-tailed pipefishMicrophis brachyurus brachyurusFinescale tigerfishDatnioides microlepisFreshwater garfishXenentodon cancilaSouth American lungfishLepidosiren paradoxaSee 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