Can Betta Fish live with Neon Tetra?
🟡 CAUTION
Case-by-case. Watch group sizes, tank size, and feeding zones.
Betta Fish
Betta splendens
| Adult Size: | 2.8" |
| Temperament: | semi-aggressive |
| Min Tank: | 5 gal |
| Temperature: | 75-80°F |
| pH Range: | 6.5-7.5 |
Neon Tetra
Paracheirodon innesi
| Adult Size: | 1.2" |
| Temperament: | peaceful |
| Min Tank: | 10 gal |
| Temperature: | 68-77°F |
| pH Range: | 5.5-7.0 |
Water Parameter Overlap
| Parameter | Betta Fish | Neon Tetra | Overlap |
|---|---|---|---|
| Temperature | 75-80°F | 68-77°F | 2°F ✓ |
| pH | 6.5-7.5 | 5.5-7.0 | 0.5 ✓ |
Why CAUTION?
Temperament Match: semi-aggressive + peaceful. Semi-aggressive → watch territory and feeding.
Score: 50.0/100 (CAUTION threshold: GOOD ≥80, CAUTION ≥50, RISKY <50).
🔧 Tank Stocking Calculator
Enter tank size to calculate safe stocking levels:
Recommended Equipment
Based on tank size 5+ gallons:
Fluval Spec V Aquarium Kit — $79.99
5-gallon nano tank perfect for betta fish
Accuracy note: This tool uses expert rules + FishBase.org data. Individual fish behavior varies. Always observe, quarantine new arrivals for 2-4 weeks, and avoid overcrowding.