Can Blue-Eyed Cardinalfish Live With Powder Blue Tang?

Blue-Eyed Cardinalfish and Powder Blue Tang are NOT compatible tank mates.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 74–82°F.

pH ✓ Compatible

Good pH overlap at 8.0–8.4.

Size ⚠ Use Caution

Significant size difference (9" vs 2"). Powder Blue Tang may bully or stress Blue-Eyed Cardinalfish.

Temperament ✗ Not Compatible

Blue-Eyed Cardinalfish (peaceful) is not compatible with Powder Blue Tang (aggressive). Aggression or stress is very likely.

Swim Level ✓ Compatible

Swim level compatibility is fine.

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: 100 gallons

ParameterBlue-Eyed CardinalfishPowder Blue Tang
Temperature74–82°F74–82°F
pH8–8.48–8.4
Max Size2"9"
TemperamentPeacefulAggressive
Swim LevelMiddleAll
Min Tank10 gal100 gal

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