Can Figure Eight Puffer Live With Silver Hatchetfish?
Figure Eight Puffer and Silver Hatchetfish are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 74–82°F.
pH
✗ Not Compatible
No pH overlap. Figure Eight Puffer needs pH 7.5–8.5, but Silver Hatchetfish needs pH 5.5–7.
Size
✓ Compatible
Compatible sizes (3" and 2.5").
Temperament
⚠ Use Caution
Figure Eight Puffer (semi-aggressive) may have issues with Silver Hatchetfish (peaceful). Monitor closely if attempting.
Swim Level
✓ Compatible
Swim level compatibility is fine.
Trait Conflict
⚠ Use Caution
Figure Eight Puffer may prefer brackish water conditions, which Silver Hatchetfish cannot tolerate long-term.
Important Notes
- Silver Hatchetfish is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 25 gallons
| Parameter | Figure Eight Puffer | Silver Hatchetfish |
|---|---|---|
| Temperature | 72–82°F | 74–83°F |
| pH | 7.5–8.5 | 5.5–7 |
| Max Size | 3" | 2.5" |
| Temperament | Semi-aggressive | Peaceful |
| Swim Level | All | Top |
| Min Tank | 15 gal | 20 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.