Can Bala Shark live with Zebra Danio?
Case-by-case. Watch group sizes, tank size, and feeding zones.
Why Bala Shark and Zebra Danio Don't Make an Easy Pair
They can coexist, but you need to manage the setup carefully. The temperature margin is tight — only 3°F of safe overlap, which leaves little room for thermostat drift.
Bala Shark
Balantiocheilos melanopterus
| Adult Size: | 14.0" |
| Temperament: | peaceful |
| Min Tank: | 150 gal |
| Temperature: | 72-84°F |
| pH Range: | 6.0-8.0 |
Zebra Danio
Danio rerio
| Adult Size: | 2.0" |
| Temperament: | peaceful |
| Min Tank: | 10 gal |
| Temperature: | 64-75°F |
| pH Range: | 6.5-7.5 |
Water Parameter Overlap
| Parameter | Bala Shark | Zebra Danio | Overlap |
|---|---|---|---|
| Temperature | 72-84°F | 64-75°F | 3°F ✓ |
| pH | 6.0-8.0 | 6.5-7.5 | 1.0 ✓ |
Compatibility Breakdown
Temperament Match: peaceful + peaceful. Both peaceful → minimal conflict.
⚠️ Size Predation Risk: Bala Shark (14.0") vs Zebra Danio (2.0"). A 12.0" gap — the larger fish will view the smaller fish as food.
Score: 50.0/100 (GOOD ≥80, CAUTION ≥50, RISKY <50).
🔧 Tank Setup Requirements (for Both)
- Minimum tank: 150 gallons — sized for the larger fish in the pair.
- Temperature: keep it between 72°F and 75°F.
- pH: maintain 6.5 – 7.5.
- Hiding spots: essential for Bala Shark — caves, plants, or driftwood to retreat when feeling stressed.
- Water changes: 25% weekly minimum. Two species mean double the bioload.
🔧 Tank Stocking Calculator
Enter tank size to calculate safe stocking levels:
Recommended Equipment
Based on tank size 150+ gallons:
Large pellet food for big freshwater fish
Explore Related Checks
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Accuracy note: This tool uses expert rules + FishBase.org data. Individual fish behavior varies — a peaceful individual Bala Shark may act differently from its species average. Always observe, quarantine new arrivals for 2-4 weeks, and avoid overcrowding. If a pairing says CAUTION, start with a smaller group and a lid.