Can Congo Tetra Live With Electric Blue Johanni?
Congo Tetra and Electric Blue Johanni are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 75–82°F.
pH
⚠ Use Caution
Very narrow pH overlap (7.5–7.5). Hard to maintain precisely.
Size
✓ Compatible
Compatible sizes (3.5" and 4").
Temperament
✗ Not Compatible
Congo Tetra (peaceful) is not compatible with Electric Blue Johanni (aggressive). Aggression or stress is very likely.
Swim Level
⚠ Use Caution
Both fish occupy the middle level and Electric Blue Johanni is territorial. Provide plenty of space and hiding spots.
Important Notes
- Congo Tetra is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 58 gallons
| Parameter | Congo Tetra | Electric Blue Johanni |
|---|---|---|
| Temperature | 73–82°F | 75–82°F |
| pH | 6–7.5 | 7.5–8.5 |
| Max Size | 3.5" | 4" |
| Temperament | Peaceful | Aggressive |
| Swim Level | Middle | Middle |
| Min Tank | 30 gal | 55 gal |
Check More Combinations
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