HomeFish encyclopediaRay-finned fishesPerch-like fishThreefin blenniesRed triplefin Red triplefin (Helcogramma steinitzi) Scientific name: Helcogramma steinitzi Clark, 1980 The Red triplefin (Helcogramma steinitzi) is a marine fish of the family Tripterygiidae. Native range: Western Indian Ocean, Arabian Peninsula, northern Red Sea to the Persian Gulf. BiologyDorsal spines (total): 15 - 17; Dorsal soft rays (total): 10-12; Anal spines: 1; Anal soft rays: 19 - 21; Vertebrae: 35 - 36Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHelcogramma steinitziFamilyTripterygiidae (Threefin blennies)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length5.6Depth range0–10 m (0–33 ft)EnvironmentMarine; reef-associated; depth range 0 - 10 mClimateTropicalDistributionWestern Indian Ocean: Arabian Peninsula, northern Red Sea to the Persian Gulf.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026