HomeFreshwater aquarium fishPuffers, gobies & brackish fishTetraodon suvattii Tetraodon suvattii Scientific name: Tetraodon suvattii Sontirat, 1989 Tetraodon suvattii is a freshwater fish of the family Tetraodontidae that grows to about 11.5 cm (4.5 in). It is aggressive and needs a tank of at least 115 L (30 US gal), water at 22–26°C (72–79°F) and a pH of 6.5–7.5. Native range: Asia, Mekong river basin. Tetraodon suvattii care at a glanceTemperamentAggressiveAdult size11.5 cm (4.5 in)Minimum tank115 L (30 US gal)Temperature22–26°C (72–79°F)pH6.5–7.5Hardness5–12 dGH (89–214 ppm) BiologyUpturned mouth; light and dark marks forming a radial pattern surrounding eye; depressed head and body; a more or less complete ocellus on the posterior part of the body; a series of oblique stripes on the cheeks and on the lower anterior part of the body.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTetraodon suvattiiFamilyTetraodontidae (Puffers)OrderTetraodontiformes (Puffers and Filefishes)ClassActinopterygii (Ray-finned fishes)Maximum length11.5EnvironmentFreshwater; demersalClimateTropicalDistributionAsia: Mekong basin.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More puffers, gobies & brackish fishAmazon pufferColomesus asellusSpotted scatScatophagus argusGlobe fishTetraodon lineatusRhinogobius duospilusViolet gobyGobioides broussonnetiiSilver moonyMonodactylus argenteusSee all puffers, gobies & brackish fish SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0. Aquarium care parameters compiled, checked and converted to metric and imperial units by Guppies.za.net.Last updated 28 September 2026