Can Red Devil Live With Red Eye Tetra?
Red Devil and Red Eye Tetra are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 75–82°F.
pH
✓ Compatible
Good pH overlap at 6.5–7.5.
Size
⚠ Use Caution
Significant size difference (12" vs 2.5"). Red Devil may bully or stress Red Eye Tetra.
Temperament
✗ Not Compatible
Red Devil (aggressive) is not compatible with Red Eye Tetra (peaceful). Aggression or stress is very likely.
Swim Level
⚠ Use Caution
Both fish occupy the middle level and Red Devil is territorial. Provide plenty of space and hiding spots.
Trait Conflict
✗ Not Compatible
Red Devil is a predator and may eat Red Eye Tetra.
Important Notes
- Red Eye Tetra is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 65 gallons
| Parameter | Red Devil | Red Eye Tetra |
|---|---|---|
| Temperature | 75–82°F | 72–82°F |
| pH | 6.5–7.5 | 5.5–8.5 |
| Max Size | 12" | 2.5" |
| Temperament | Aggressive | Peaceful |
| Swim Level | Middle | Middle |
| Min Tank | 55 gal | 20 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.