Can Dwarf Gourami live with Weather Loach?
High risk due to water mismatch, aggression, or predation.
Why Dwarf Gourami and Weather Loach Don't Make an Easy Pair
There is no temperature overlap — Dwarf Gourami needs 77-82°F while Weather Loach needs 50-77°F. One of them will be outside its safe range constantly, which leads to chronic stress and disease. The size gap is 6.5" — Dwarf Gourami (3.5") and Weather Loach (10.0"). A fish that fits in another fish's mouth will eventually end up there.
Dwarf Gourami
Trichogaster lalius
| Adult Size: | 3.5" |
| Temperament: | peaceful |
| Min Tank: | 20 gal |
| Temperature: | 77-82°F |
| pH Range: | 6.5-7.5 |
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 | Dwarf Gourami | Weather Loach | Overlap |
|---|---|---|---|
| Temperature | 77-82°F | 50-77°F | No overlap ✗ |
| pH | 6.5-7.5 | 6.0-8.0 | 1.0 ✓ |
Compatibility Breakdown
Temperament Match: peaceful + peaceful. Both peaceful → minimal conflict.
⚠️ Size Predation Risk: Dwarf Gourami (3.5") vs Weather Loach (10.0"). A 6.5" gap — the larger fish will view the smaller fish as food.
Score: 20.0/100 (GOOD ≥80, CAUTION ≥50, RISKY <50).
🔧 Tank Setup Requirements (for Both)
- Minimum tank: 30 gallons — sized for the larger fish in the pair.
- Temperature: no safe overlap range exists. A heater is not enough to fix this pairing.
- pH: maintain 6.5 – 7.5.
- Hiding spots: essential for Dwarf Gourami — 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 peaceful individual Dwarf Gourami 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.