Can Oscar Live With Rosy Tetra?

Oscar and Rosy Tetra are NOT compatible tank mates.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 75–81°F.

pH ✓ Compatible

Good pH overlap at 6.0–7.5.

Size ✗ Not Compatible

Extreme size difference. Oscar (14") may eat or bully Rosy Tetra (1.8").

Temperament ✗ Not Compatible

Oscar (aggressive) is not compatible with Rosy Tetra (peaceful). Aggression or stress is very likely.

Swim Level ⚠ Use Caution

Both fish occupy the middle level and Oscar is territorial. Provide plenty of space and hiding spots.

Trait Conflict ✗ Not Compatible

Oscar is a predator and may eat Rosy Tetra.

Important Notes

  • Rosy Tetra is a schooling fish and needs at least 6 of its kind.

Tank Requirements

Minimum tank size for this combination: 83 gallons

ParameterOscarRosy Tetra
Temperature74–81°F75–82°F
pH6–7.56–7.5
Max Size14"1.8"
TemperamentAggressivePeaceful
Swim LevelMiddleMiddle
Min Tank75 gal15 gal

Check More Combinations

Use our compatibility checker to add more fish and plan your complete tank.