Can Emperor Angelfish Live With Yellowtail Damselfish?

Emperor Angelfish and Yellowtail Damselfish are NOT compatible tank mates.

Detailed Analysis

Temperature ✓ Compatible

Good temperature overlap at 74–82°F.

pH ✓ Compatible

Good pH overlap at 8.1–8.4.

Size ✗ Not Compatible

Extreme size difference. Emperor Angelfish (15") may eat or bully Yellowtail Damselfish (2.5").

Temperament ⚠ Use Caution

Emperor Angelfish (semi-aggressive) may have issues with Yellowtail Damselfish (semi-aggressive). Monitor closely if attempting.

Swim Level ⚠ Use Caution

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

Tank Requirements

Minimum tank size for this combination: 135 gallons

ParameterEmperor AngelfishYellowtail Damselfish
Temperature74–82°F74–82°F
pH8.1–8.48–8.4
Max Size15"2.5"
TemperamentSemi-aggressiveSemi-aggressive
Swim LevelMiddleMiddle
Min Tank125 gal20 gal

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