Hyphessobrycon eques · Easy care · 20 gallon minimum

A blood-red tetra that's beautiful but a known fin-nipper — keep a large group to diffuse aggression.
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A serpae tetra (Hyphessobrycon eques) reaches about 1.75 inches as an adult. Plan tank size and tank mates around the adult size, not the small fish you buy at the store.
Give a serpae tetra a minimum of 20 gallons, with water at 72–79°F and a pH of 5–7.5. Keep them in groups of at least 8 — they are shoaling fish and become stressed and washed-out alone. As a easy-care, omnivore species, a stable, cycled tank with the right diet keeps them healthiest.
Pair a serpae tetra with peaceful species that share its temperature and pH range. Compatible options include:
The serpae tetra, also known as the Callistus tetra, red tetra, jewel tetra or blood characin, is a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American tetras. This species is found in South America.
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