Fishician®Diet
Omnivore – flake food, pellets, frozen brine shrimp; will eat soft-leaved plants
Aquarium species profile
Buenos Aires Tetra
Hyphessobrycon anisitsi · South America (Argentina, Paraguay, Brazil — La Plata basin)
Minimum tank30 gal
Adult size2.75"
Care levelEasy
TemperamentSemi-Aggressive
Temperature64–82°F
pH range5.5–7.5
Compatible tank mates
Larger tetras, semi-aggressive community fish, fast-moving fish
Tank mates to avoid
Live plants (will eat them), slow long-finned fish (fin-nippers), very small nano fish
Care notes
One of the coldest-water tolerant tetras — ideal for unheated subtropical tanks. Silver body with red-tipped fins and a black lateral stripe. Known plant destroyers. Best in tanks with tough plants (Java Fern, Anubias) or no live plants. Schools of 8+.
Check the whole aquarium. Tank size alone does not establish compatibility. Confirm adult size, water overlap, social grouping, territory, diet, and the individual animals before stocking.