HomeFreshwater aquarium fishTetras & characinsLemon tetra Lemon tetra (Hyphessobrycon pulchripinnis) Scientific name: Hyphessobrycon pulchripinnis Ahl, 1937 The Lemon tetra (Hyphessobrycon pulchripinnis) is a freshwater fish of the family Characidae that grows to about 5 cm (2 in). It is easy to keep and peaceful and needs a tank of at least 75 L (20 US gal), water at 22–28°C (72–82°F) and a pH of 5.5–8.0. Native range: South America, streams of the Amazon basin. Lemon tetra care at a glanceCare levelEasyTemperamentPeacefulAdult size5 cm (2 in)Minimum tank75 L (20 US gal)Temperature22–28°C (72–82°F)pH5.5–8.0Hardness3–25 dGH (54–446 ppm)DietOmnivore. Accepts flakes, frozen foods and live foods. BiologyFeeds on worms, crustaceans and plant matter. Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 60 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameHyphessobrycon pulchripinnisFamilyCharacidae (Characins)OrderCharaciformes (Characins)ClassActinopterygii (Ray-finned fishes)Maximum length3.8EnvironmentFreshwater;; pH range: 5.5 - 8.0; dH range: ? - 25 benthopelagicClimateTropicalDistributionSouth America: Tapaj?s River basin.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesAquarium: highly commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More tetras & characinsFlag tetraHyphessobrycon heterorhabdusBlack neon tetraHyphessobrycon herbertaxelrodiBlack phantom tetraHyphessobrycon megalopterusRed phantom tetraHyphessobrycon sweglesiFlame tetraHyphessobrycon flammeusBleeding-heart tetraHyphessobrycon erythrostigmaSee all tetras & characins Can it live with...?Lemon tetra and Black neon tetraLemon tetra and Black phantom tetraLemon tetra and Bleeding-heart tetraLemon tetra and Bloodfin tetraLemon tetra and Flag tetraLemon tetra and Flame tetraLemon tetra and Garnet tetraLemon tetra and Glowlight tetraLemon tetra and Head-and-taillight tetraLemon tetra and Pinktail chalceusLemon tetra and Red phantom tetra 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