Can Blue Tetra Live With Marbled Hatchetfish?
Blue Tetra and Marbled Hatchetfish CAN coexist, but with some risks. Careful setup and monitoring required.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 75–82°F.
pH
✓ Compatible
Good pH overlap at 6.0–7.0.
Size
✓ Compatible
Compatible sizes (2.5" and 1.5").
Temperament
⚠ Use Caution
Blue Tetra (semi-aggressive) may have issues with Marbled Hatchetfish (peaceful). Monitor closely if attempting.
Swim Level
✓ Compatible
Fish occupy different water levels (Blue Tetra: middle, Marbled Hatchetfish: top), reducing conflict.
Important Notes
- Blue Tetra is a schooling fish and needs at least 6 of its kind.
- Marbled Hatchetfish is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 28 gallons
| Parameter | Blue Tetra | Marbled Hatchetfish |
|---|---|---|
| Temperature | 73–82°F | 75–82°F |
| pH | 6–7.5 | 5–7 |
| Max Size | 2.5" | 1.5" |
| Temperament | Semi-aggressive | Peaceful |
| Swim Level | Middle | Top |
| Min Tank | 20 gal | 15 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.