Can Cardinal Tetra Live With Figure Eight Puffer?
Cardinal Tetra and Figure Eight Puffer are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 73–82°F.
pH
✗ Not Compatible
No pH overlap. Cardinal Tetra needs pH 5–7, but Figure Eight Puffer needs pH 7.5–8.5.
Size
✓ Compatible
Compatible sizes (2" and 3").
Temperament
⚠ Use Caution
Cardinal Tetra (peaceful) may have issues with Figure Eight Puffer (semi-aggressive). 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 Cardinal Tetra cannot tolerate long-term.
Important Notes
- Cardinal Tetra is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 18 gallons
| Parameter | Cardinal Tetra | Figure Eight Puffer |
|---|---|---|
| Temperature | 73–84°F | 72–82°F |
| pH | 5–7 | 7.5–8.5 |
| Max Size | 2" | 3" |
| Temperament | Peaceful | Semi-aggressive |
| Swim Level | Middle | All |
| Min Tank | 10 gal | 15 gal |
Check More Combinations
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