Can American Flagfish Live With Green Terror?
American Flagfish and Green Terror are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 72–80°F.
pH
✓ Compatible
Good pH overlap at 6.5–8.0.
Size
⚠ Use Caution
Significant size difference (8" vs 2.5"). Green Terror may bully or stress American Flagfish.
Temperament
✗ Not Compatible
American Flagfish (semi-aggressive) is not compatible with Green Terror (aggressive). Aggression or stress is very likely.
Swim Level
⚠ Use Caution
Both fish occupy the middle level and Green Terror is territorial. Provide plenty of space and hiding spots.
Trait Conflict
✗ Not Compatible
Green Terror is a predator and may eat American Flagfish.
Tank Requirements
Minimum tank size for this combination: 55 gallons
| Parameter | American Flagfish | Green Terror |
|---|---|---|
| Temperature | 64–82°F | 72–80°F |
| pH | 6.5–8 | 6.5–8 |
| Max Size | 2.5" | 8" |
| Temperament | Semi-aggressive | Aggressive |
| Swim Level | Middle | Middle |
| Min Tank | 10 gal | 55 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.