Can Lemon Tetra Live With Threadfin Acara?
Lemon Tetra and Threadfin Acara are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 76–82°F.
pH
✓ Compatible
Good pH overlap at 5.5–7.5.
Size
✗ Not Compatible
Extreme size difference. Threadfin Acara (8") may eat or bully Lemon Tetra (1.5").
Temperament
⚠ Use Caution
Lemon Tetra (peaceful) may have issues with Threadfin Acara (semi-aggressive). Monitor closely if attempting.
Swim Level
✓ Compatible
Fish occupy different water levels (Lemon Tetra: middle, Threadfin Acara: bottom), reducing conflict.
Important Notes
- Lemon Tetra is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 55 gallons
| Parameter | Lemon Tetra | Threadfin Acara |
|---|---|---|
| Temperature | 72–82°F | 76–84°F |
| pH | 5.5–7.5 | 5.5–7.5 |
| Max Size | 1.5" | 8" |
| Temperament | Peaceful | Semi-aggressive |
| Swim Level | Middle | Bottom |
| Min Tank | 15 gal | 55 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.