Can Cardinal Tetra Live With Green Terror?

Cardinal Tetra and Green Terror are NOT compatible tank mates.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 73–80°F.

pH ✓ Compatible

Good pH overlap at 6.5–7.0.

Size ⚠ Use Caution

Significant size difference (8" vs 2"). Green Terror may bully or stress Cardinal Tetra.

Temperament ✗ Not Compatible

Cardinal Tetra (peaceful) is not compatible with Green Terror (aggressive). Aggression or stress is very likely.

Swim Level ⚠ Use Caution

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

Trait Conflict ✗ Not Compatible

Green Terror is a predator and may eat Cardinal Tetra.

Important Notes

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

Tank Requirements

Minimum tank size for this combination: 55 gallons

ParameterCardinal TetraGreen Terror
Temperature73–84°F72–80°F
pH5–76.5–8
Max Size2"8"
TemperamentPeacefulAggressive
Swim LevelMiddleMiddle
Min Tank10 gal55 gal

Check More Combinations

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