Can Domino Damselfish Live With Lawnmower Blenny?
Domino Damselfish and Lawnmower Blenny 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
✓ Compatible
Compatible sizes (5" and 5").
Temperament
✗ Not Compatible
Domino Damselfish (aggressive) is not compatible with Lawnmower Blenny (peaceful). Aggression or stress is very likely.
Swim Level
✓ Compatible
Fish occupy different water levels (Domino Damselfish: middle, Lawnmower Blenny: bottom), reducing conflict.
Tank Requirements
Minimum tank size for this combination: 45 gallons
| Parameter | Domino Damselfish | Lawnmower Blenny |
|---|---|---|
| Temperature | 74–82°F | 74–82°F |
| pH | 8–8.4 | 8–8.4 |
| Max Size | 5" | 5" |
| Temperament | Aggressive | Peaceful |
| Swim Level | Middle | Bottom |
| Min Tank | 30 gal | 30 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.