HomeFish encyclopediaRay-finned fishesPerch-like fishAsiatic glassfishesFour-spined glass perchlet Four-spined glass perchlet (Tetracentrum apogonoides) Scientific name: Tetracentrum apogonoides Macleay, 1883 The Four-spined glass perchlet (Tetracentrum apogonoides) is a freshwater fish of the family Ambassidae. In the aquarium it needs water at 23–28°C (73–82°F). Native range: Oceania, known only from Papua New Guinea. Four-spined glass perchlet care at a glanceTemperature23–28°C (73–82°F) BiologyDorsal spines (total): 9; Dorsal soft rays (total): 10; Anal spines: 3 - 4; Anal soft rays: 9Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTetracentrum apogonoidesFamilyAmbassidae (Asiatic glassfishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length12.5Common length7.5EnvironmentFreshwater; demersalClimateTropicalDistributionOceania: known only from Papua New Guinea.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