Can Azure Damselfish Live With Blue-Eyed Cardinalfish?

Azure Damselfish and Blue-Eyed Cardinalfish CAN coexist, but with some risks. Careful setup and monitoring required.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 74–82°F.

pH ✓ Compatible

Good pH overlap at 8.0–8.4.

Size ✓ Compatible

Compatible sizes (2.5" and 2").

Temperament ⚠ Use Caution

Azure Damselfish (semi-aggressive) may have issues with Blue-Eyed Cardinalfish (peaceful). Monitor closely if attempting.

Swim Level ⚠ Use Caution

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

Important Notes

  • Blue-Eyed Cardinalfish is a schooling fish and needs at least 3 of its kind.

Tank Requirements

Minimum tank size for this combination: 25 gallons

ParameterAzure DamselfishBlue-Eyed Cardinalfish
Temperature74–82°F74–82°F
pH8–8.48–8.4
Max Size2.5"2"
TemperamentSemi-aggressivePeaceful
Swim LevelMiddleMiddle
Min Tank20 gal10 gal

Check More Combinations

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