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Freshwater fish care guide

Buenos Aires Tetra

Freshwater aquarium livestock

Hardy active tetra that may nibble soft aquarium plants.

Starter tank30+ gal
Temperature64–82°F
pH6–8
Group guide6+

Planning your aquarium

The library starting point is 30+ US gallons. Plan for the approximate 3-inch adult size and the species' normal activity, not just its current shop size.

The library suggests a group of at least 6. Count every individual when estimating stocking and swimming room.

Mixed-species aquariums may need substantially more space. Tank length, adult behavior, filtration, and hiding spaces all matter.

Tank setup and behavior

  • Include planting or cover without removing all open swimming space.
  • Choose plants carefully; this species may graze on tender foliage.

Hardy active tetra that may nibble soft aquarium plants.

Food and feeding

Food options: Tropical flakes, Small pellets, Vegetable matter.

Use appropriately sized, complete staple foods and rotate suitable foods for variety. Feed modest portions and remove uneaten food.

Compatibility

The current rule-based checker does not list a dedicated pairing warning for this species. That does not mean every pairing is safe; review temperament, adult size, diet, habitat and water requirements.