HomeFreshwater aquarium fishPuffers, gobies & brackish fishImmaculate puffer Immaculate puffer (Arothron immaculatus) Scientific name: Arothron immaculatus Bloch & Schneider, 1801 The Immaculate puffer (Arothron immaculatus) is a brackish-water fish of the family Tetraodontidae. Native range: Indo-West Pacific, Red Sea and East Africa (including the south coast of South Africa, ) to Indonesia, north to southern Japan. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 9-11; Anal spines: 0; Anal soft rays: 9 - 17. Body covered with prickles. Dark bars on side of head and below pectoral fins; juvenile specimens from the Pacific with longitudinal dark stripes on belly.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameArothron immaculatusFamilyTetraodontidae (Puffers)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length30.0Depth range1–17 m (3–56 ft)EnvironmentMarine; brackish; reef-associated; depth range 1 - 17 mClimateTropicalDistributionIndo-West Pacific: Red Sea and East Africa (including the south coast of South Africa, ) to Indonesia, north to southern Japan.Conservation status (IUCN)Not EvaluatedThreat to humansPoisonous to eatUsesFisheries: minor commercial; aquarium: public aquariumsResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More puffers, gobies & brackish fishBanded archerfishToxotes jaculatrixSilver moonyMonodactylus argenteusRhinogobius duospilusGlobe fishTetraodon lineatusAmazon pufferColomesus asellusSpotted scatScatophagus argusSee all puffers, gobies & brackish fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026