HomeFreshwater aquarium fishTetras & characinsJewel tetra Jewel tetra (Hyphessobrycon eques) Scientific name: Hyphessobrycon eques Steindachner, 1882 The Jewel tetra (Hyphessobrycon eques) is a freshwater fish of the family Characidae that grows to about 5 cm (2 in). It is easy to keep and semi-aggressive, suits community aquariums and needs a tank of at least 55 L (15 US gal), water at 24–28°C (75–82°F) and a pH of 5.5–7.5. Native range: South America, Amazon, Guapor? and Paraguay River basins. Jewel tetra care at a glanceCare levelEasyTemperamentSemi-aggressiveCommunity tankExcellentAdult size5 cm (2 in)Minimum tank55 L (15 US gal)Temperature24–28°C (75–82°F)pH5.5–7.5Hardness3–12 dGH (54–214 ppm)DietOmnivore. Accepts flakes, freeze-dried foods, frozen foods and live foods. BiologyA gregarious species which positions itself near the surface between the stems of emerging plants. It is frequently found in stagnant waters. They are generally peaceful, but when there are too many of them during feeding, they bite each other's fins. Feeds on worms, crustaceans, insects and plants. Oviparous. This species is part of a complex of `blood' tetras, hybrids of which are commonly offered in the aquarium trade. Aquarium keeping: aggressive; in groups of 5 or more individuals; minimum aquarium size 60 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHyphessobrycon equesFamilyCharacidae (Characins)OrderCharaciformes (Characins)ClassActinopterygii (Ray-finned fishes)Maximum length4.0EnvironmentFreshwater;; pH range: 5.0 - 7.8; dH range: 10 - 25 benthopelagicClimateTropicalDistributionSouth America: Amazon, Guapor? and Paraguay River basins.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: highly commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More tetras & characinsRed piranhaPygocentrus nattereriBlack tetraGymnocorymbus ternetziHemigrammus bellottiiMoenkhausia collettiiIguanodectes spilurusHemigrammus ulreyiSee all tetras & characins 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