Max Size: 4.5cm

Serpae Tetra (Hyphessobrycon eques)

The Serpae Tetra is an active, hardy and brightly coloured fish. They can become slightly aggressive if they are kept among slow-moving species, but generally, they make good tank mates.

Because of how easy the Serpae tetras are to care for and their unique characteristics, they are prevalent in the aquarium hobby.

The serpae Tetra is flat and tall, a deep reddish, olive-brown colour; however, on the sides, the scarlet red is more pronounced.

Behind the gills, you will notice a black comma-shaped dot is visible, and the dorsal fin is black.

Quick Facts
Scientific NameHyphessobrycon eques
Other NamesJewel tetra, Callistus tetra
OriginsArgentina, Brazil, Paraguay
Aquarium LevelMiddle
DifficultyBeginner - Intermediate
Best kept asGroups 6+
Lifespan3 -7 years
Water Parameters
Water TypeFreshwater
PH5.0 - 7.8
GH5 - 25
72 - 79℉
22.2 - 26.1℃

Photos of the Serpae Tetra

Long Fin Serpae Tetra
Serpae Tetra Spawning
Serpae Tetra
Serpae Tetra
Serpae Tetra
Serpae Tetra

Natural Habitat

Serpae tetras originate in the Amazon basin, inhabiting the Guapore and Paraguay River basins in Brazil, Argentina and upper Paraguay.

This species prefers slow-moving, still backwaters such as lakes, ponds, and streams. They often gather around tree roots and thick vegetation where they can find both food and safety.

What to feed the Serpae Tetra

The serpae Tetra will consume almost anything you offer them. They will happily eat, flakes pellets and ground grains as well as small live or frozen foods such as insects, bloodworm, and brine shrimp. They will also eat vegetable matter. These species have little mouths so the food must be small enough for them to manage.

How to sex the Serpae Tetra

It is quite easy to differentiate males from females. The female Serpae Tetras have a more rounded body whereas the males are slim, and the males look brighter and more colourful, and the females are duller.

How to breed the Serpae Tetra

When breeding Serpae Tetras, certain tank conditions are required.

The aquarium water should be soft with little acidity and gentle filtration, and the tank should be dimly lit with plenty of dark-leaved plants such as java moss where they can lay their eggs.

Feeding them more live foods will encourage spawning.

Once thriving, it usually takes about a day for the eggs to hatch.

Other Tetras of interest

African Moon Tetra(Bathyaethiops caudomaculatus)
African Red Eyed Tetra(Arnoldichthys spilopterus)
Black Darter Tetra(Poecilocharax weitzmani)
Black Line Tetra(Hyphessobrycon scholzei)
Black Neon Tetra(Hyphessobrycon herbertaxelrodi)
Black Phantom Tetra(Hyphessobrycon megalopterus)
View all Tetras
Date Added: 22/07/2020 - Updated: 02/12/2021 17:42:08