Can Discus Live With Julii Corydoras?

Discus and Julii Corydoras are NOT compatible tank mates.

Detailed Analysis

Temperature ✗ Not Compatible

No temperature overlap. Discus needs 82–88°F, but Julii Corydoras needs 72–79°F.

pH ✓ Compatible

Good pH overlap at 6.0–7.0.

Size ⚠ Use Caution

Significant size difference (8" vs 2"). Discus may bully or stress Julii Corydoras.

Temperament ✓ Compatible

Both fish have compatible temperaments.

Swim Level ✓ Compatible

Fish occupy different water levels (Discus: middle, Julii Corydoras: bottom), reducing conflict.

Important Notes

  • Discus is a schooling fish and needs at least 5 of its kind.
  • Julii Corydoras is a schooling fish and needs at least 6 of its kind.

Tank Requirements

Minimum tank size for this combination: 63 gallons

ParameterDiscusJulii Corydoras
Temperature82–88°F72–79°F
pH5.5–76–7.5
Max Size8"2"
TemperamentPeacefulPeaceful
Swim LevelMiddleBottom
Min Tank55 gal15 gal

Check More Combinations

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