Can Achilles Tang Live With Firefish Goby?

Achilles Tang and Firefish Goby 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 ⚠ Use Caution

Significant size difference (10" vs 3"). Achilles Tang may bully or stress Firefish Goby.

Temperament ✗ Not Compatible

Achilles Tang (aggressive) is not compatible with Firefish Goby (peaceful). Aggression or stress is very likely.

Swim Level ✓ Compatible

Swim level compatibility is fine.

Tank Requirements

Minimum tank size for this combination: 135 gallons

ParameterAchilles TangFirefish Goby
Temperature74–82°F74–82°F
pH8–8.48.1–8.4
Max Size10"3"
TemperamentAggressivePeaceful
Swim LevelAllMiddle
Min Tank125 gal20 gal

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