Buenos Aires tetra (Hyphessobrycon anisitsi)

Family: Characidae

Hyphessobrycon anisitsi — a Characidae from Laos and Central and North America. Reaches 9.9–14.5 cm; keep at 23–28 °C.

Care parameters

Water temperature
23–28 °C
pH
5.6–7.5
GH hardness
5–15 dGH
Adult length
9.9–14.5 cm
Minimum tank
252 L
Water layer
Bottom-dwelling
Difficulty
Moderate
Temperament
Mostly peaceful; larger species predatory
Origin
Laos and Central and North America

Species overview

Hyphessobrycon anisitsi is a Characidae from Laos and Central and North America. In the wild it prefers blackwater streams and flooded forest; in the aquarium it stays mostly peaceful. Plan on 9.9–14.5 cm of adult fish at 23–28 °C. Related profiles: Hyphessobrycon amandae, Hyphessobrycon herbertaxelrodi, Hyphessobrycon eques.

Native biotope

Habitat
Blackwater streams and flooded forest
Flow
Still to gentle current
Dissolved O₂
Moderate

Aquascape & hardware

Substrate
Dark sand and leaf litter
Hardscape
Driftwood and dense plant edges
Plants
Floating and shaded plants appreciated

Temperament, diet & tankmates

Schooling
Strong shoalers; keep in groups of 8 or more
Diet
Omnivore with carnivorous tilt
Recommended tankmates
  • Similar-sized peaceful community fish — Similar size and water needs
Avoid keeping with
  • Much smaller fish — May outcompete or bully tiny tankmates

Breeding & notes

Sexual dimorphism
Subtle; females fuller-bodied
Breeding method
Egg-scatterer among fine plants

Frequently asked questions

Is Hyphessobrycon anisitsi easy to keep?

A moderate-level species: mostly peaceful; larger species predatory; stable water matters more than fancy equipment.

What temperature and water chemistry does Hyphessobrycon anisitsi need?

Aim for 23–28 °C. Heater for stable tropical warmth; 23–28.0 °C typical for the genus.

How big does Hyphessobrycon anisitsi get, and what tank size?

Expect 9.9–14.5 cm as an adult, living bottom-dwelling. A 252 L tank or larger gives it room.

What does Hyphessobrycon anisitsi eat?

Omnivore with carnivorous tilt. It forages naturally over dark sand and leaf litter, so let some food reach the bottom.

Can Hyphessobrycon anisitsi live with other fish?

Mostly peaceful; larger species predatory. Recommended tankmates: Similar-sized peaceful community fish — Similar size and water needs. Avoid Much smaller fish — May outcompete or bully tiny tankmates.

Where does Hyphessobrycon anisitsi come from?

Comes from Laos and Central and North America: blackwater streams and flooded forest. Expect still to gentle current and moderate.

Does Hyphessobrycon anisitsi jump?

Jumping is not a known issue; cover the tank anyway during water changes.

How does Hyphessobrycon anisitsi breed?

In the aquarium: egg-scatterer among fine plants. Subtle; females fuller-bodied.