HomeMarine aquarium fishGobies, blennies & dottybacksLined dartfish Lined dartfish (Ptereleotris grammica) Scientific name: Ptereleotris grammica Randall & Lubbock, 1982 The Lined dartfish (Ptereleotris grammica) is a marine fish of the family Ptereleotridae. In the aquarium it needs water at 22–27°C (72–81°F). Native range: Indo-West Pacific, Mauritius and Maldives to the Solomon Islands, north to the Ryukyu Islands, south to the Great Barrier Reef. Lined dartfish care at a glanceTemperature22–27°C (72–81°F) BiologyOccurs on rubble or sandy areas of seaward reefs. Burrows occasionally.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePtereleotris grammicaFamilyPtereleotridae (Dartfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length10.0Depth range30–50 m (98–164 ft)EnvironmentMarine; reef-associated; depth range 30 - 50 m, usually 30 - 50 mClimateTropicalDistributionIndo-West Pacific: Mauritius and Maldives to the Solomon Islands, north to the Ryukyu Islands, south to the Great Barrier Reef.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercial More gobies, blennies & dottybacksYellowhead jawfishOpistognathus aurifronsFire gobyNemateleotris magnificaYellow prawn-gobyCryptocentrus cinctusPersian blennyEcsenius midasBlackfin dartfishPtereleotris evidesBlue hana gobyPtereleotris hanaeSee 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