CheckMyFishTankBuenos Aires Tetra care
Hyphessobrycon anisitsi · Freshwater · Beginner level care
A hardy, fast tetra that eats plants and nips at fins.
Feeding
Twice a day. A small pinch they finish in about 2 minutes, a little more for bigger fish. Flakes, small pellets, plenty of vegetable matter.
Nips the fins of slow fish with long fins.
Good tank mates
Fish that pass every check with Buenos Aires Tetra in a 60 gallon tank: same water, overlapping temperature, nobody gets eaten and no bullies.
Do not mix with
- Tinfoil Barb: Tinfoil Barb grows big enough to eat Buenos Aires Tetra.
- German Blue Ram: German Blue Ram and Buenos Aires Tetra need different water temperatures.
- Discus: Discus and Buenos Aires Tetra need different water temperatures.
- Oscar: Oscar grows big enough to eat Buenos Aires Tetra.
- Jack Dempsey: Jack Dempsey grows big enough to eat Buenos Aires Tetra.
- Severum: Severum grows big enough to eat Buenos Aires Tetra.
- Green Terror: Green Terror grows big enough to eat Buenos Aires Tetra.
- Blue Acara: Blue Acara grows big enough to eat Buenos Aires Tetra.
Questions
What size tank does a Buenos Aires Tetra need?
At least 30 gallons for a group of 8. Adults grow to about 2.75 inches, so plan for the adult size, not the size at the store.
What temperature does a Buenos Aires Tetra like?
64 to 77 degrees Fahrenheit, with a pH of about 6 to 7.5. A steady temperature matters more than hitting one exact number.
How many Buenos Aires Tetra should I keep together?
Keep 8 or more. They feel safe in a group and show better color and behavior.
What do Buenos Aires Tetra eat?
Flakes, small pellets, plenty of vegetable matter. Feed twice a day: a small pinch they finish in about 2 minutes, a little more for bigger fish.
Sources
Checked against these sources on 2026-11-10. When sources disagree we use the safer number.