Can Black Ruby Barb Live With Discus?

Black Ruby Barb and Discus are NOT compatible tank mates.

Detailed Analysis

Temperature ✗ Not Compatible

No temperature overlap. Black Ruby Barb needs 72–79°F, but Discus needs 82–88°F.

pH ✓ Compatible

Good pH overlap at 6.0–7.0.

Size ⚠ Use Caution

Significant size difference (8" vs 2.5"). Discus may bully or stress Black Ruby Barb.

Temperament ✓ Compatible

Both fish have compatible temperaments.

Swim Level ✓ Compatible

Swim level compatibility is fine.

Important Notes

  • Black Ruby Barb is a schooling fish and needs at least 6 of its kind.
  • Discus is a schooling fish and needs at least 5 of its kind.

Tank Requirements

Minimum tank size for this combination: 55 gallons

ParameterBlack Ruby BarbDiscus
Temperature72–79°F82–88°F
pH6–75.5–7
Max Size2.5"8"
TemperamentPeacefulPeaceful
Swim LevelMiddleMiddle
Min Tank20 gal55 gal

Check More Combinations

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