Can Blue Devil Damselfish Live With Engineer Goby?
Blue Devil Damselfish and Engineer Goby 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 (13" vs 3"). Engineer Goby may bully or stress Blue Devil Damselfish.
Temperament
✗ Not Compatible
Blue Devil Damselfish (aggressive) is not compatible with Engineer Goby (peaceful). Aggression or stress is very likely.
Swim Level
✓ Compatible
Fish occupy different water levels (Blue Devil Damselfish: middle, Engineer Goby: bottom), reducing conflict.
Important Notes
- Engineer Goby is a schooling fish and needs at least 3 of its kind.
Tank Requirements
Minimum tank size for this combination: 55 gallons
| Parameter | Blue Devil Damselfish | Engineer Goby |
|---|---|---|
| Temperature | 74–82°F | 74–82°F |
| pH | 8–8.4 | 8–8.4 |
| Max Size | 3" | 13" |
| Temperament | Aggressive | Peaceful |
| Swim Level | Middle | Bottom |
| Min Tank | 20 gal | 55 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.