Buenos Aires Tetra

Hyphessobrycon anisitsi

Buenos Aires Tetra (Hyphessobrycon anisitsi) — Easy care, Peaceful, under Tetra & Characin. Minimum tank in the app: 25 US gal min; aim for 66–81°F and pH 5.5–7.5. The Buenos Aires Tetra is ideal for both novice and experienced aquarists seeking a vibrant mid-water schooling fish.

Buenos Aires Tetra (Hyphessobrycon anisitsi) in a planted freshwater aquarium
Care levelEasy
TemperamentPeaceful
Min tank size25 US gal min
pH range5.5–7.5
Temperature66–81°F
Max size3.0 in (7.5 cm)
Captive lifespan5–10 years
SchoolingYes · 6+ recommended

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Mostly South America

  • South America

Regional colours match the stocking calculator’s origin map.

Buenos Aires Tetra Tank Setup

Create a habitat that balances open swimming space with plenty of cover, such as plants and driftwood, to mimic their natural environment. Opt for a substrate that complements their colors, moderate lighting to avoid stress, and ensure water flow is gentle to encourage active swimming without overwhelming the fish.

What Do Buenos Aires Tetras Eat?

As omnivores, these tetras have a robust appetite and can compete effectively for micro foods. However, care should be taken to ensure all members of the shoal receive adequate nutrition, as dominant individuals may outpace others during feeding times.

Buenos Aires Tetra Tank Mates

Buenos Aires Tetras pair well with similarly sized, non-aggressive species that occupy the mid to upper levels of the tank. Avoid slow-moving or overly shy tank mates that may get outcompeted for food or harassed, and be mindful of intraspecies dynamics; they should always be kept in groups to prevent individual fish from becoming stressed or withdrawn.

Are Buenos Aires Tetras Good for Beginners?

In App-aquatic we file this under easy care. That still means a cycled tank, realistic stocking, and parameters that do not swing every weekend. Aquarists often underestimate the importance of group size, leading to stress and lethargy in solitary or small groups. neglecting water quality and parameters can compromise their health, as they thrive in stable conditions.

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