Can Tiger Barb live with Weather Loach?
High risk due to water mismatch, aggression, or predation.
Why Tiger Barb and Weather Loach Don't Make an Easy Pair
The size gap is 7.0" — Tiger Barb (3.0") and Weather Loach (10.0"). A fish that fits in another fish's mouth will eventually end up there.
Tiger Barb
Puntigrus tetrazona
| Adult Size: | 3.0" |
| Temperament: | semi-aggressive |
| Min Tank: | 20 gal |
| Temperature: | 74-79°F |
| pH Range: | 6.0-7.0 |
Weather Loach
Misgurnus anguillicaudatus
| Adult Size: | 10.0" |
| Temperament: | peaceful |
| Min Tank: | 30 gal |
| Temperature: | 50-77°F |
| pH Range: | 6.0-8.0 |
Water Parameter Overlap
| Parameter | Tiger Barb | Weather Loach | Overlap |
|---|---|---|---|
| Temperature | 74-79°F | 50-77°F | 3°F ✓ |
| pH | 6.0-7.0 | 6.0-8.0 | 1.0 ✓ |
Compatibility Breakdown
Temperament Match: semi-aggressive + peaceful. Semi-aggressive → watch territory and feeding.
⚠️ Size Predation Risk: Tiger Barb (3.0") vs Weather Loach (10.0"). A 7.0" gap — the larger fish will view the smaller fish as food.
Score: 40.0/100 (GOOD ≥80, CAUTION ≥50, RISKY <50).
🔧 Tank Setup Requirements (for Both)
- Minimum tank: 30 gallons — sized for the larger fish in the pair.
- Temperature: keep it between 74°F and 77°F.
- pH: maintain 6.0 – 7.0.
- Hiding spots: essential for Tiger Barb — 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 30+ gallons:
Sinking wafers for loaches and bottom feeders
Explore Related Checks
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Accuracy note: This tool uses expert rules + FishBase.org data. Individual fish behavior varies — a semi-aggressive individual Tiger Barb 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.