Can Dwarf Gourami live with Swordtail?
High risk due to water mismatch, aggression, or predation.
Why Dwarf Gourami and Swordtail Don't Make an Easy Pair
The temperament mismatch (peaceful + semi-aggressive) makes this a high-risk pairing. Injuries, stress, and hiding behavior are likely.
Dwarf Gourami
Trichogaster lalius
| Adult Size: | 3.5" |
| Temperament: | peaceful |
| Min Tank: | 20 gal |
| Temperature: | 77-82°F |
| pH Range: | 6.5-7.5 |
Swordtail
Xiphophorus helleri
| Adult Size: | 5.0" |
| Temperament: | semi-aggressive |
| Min Tank: | 20 gal |
| Temperature: | 72-78°F |
| pH Range: | 7.0-8.0 |
Water Parameter Overlap
| Parameter | Dwarf Gourami | Swordtail | Overlap |
|---|---|---|---|
| Temperature | 77-82°F | 72-78°F | 1°F ✓ |
| pH | 6.5-7.5 | 7.0-8.0 | 0.5 ✓ |
Compatibility Breakdown
Temperament Match: peaceful + semi-aggressive. Semi-aggressive → watch territory and feeding.
Score: 40.0/100 (GOOD ≥80, CAUTION ≥50, RISKY <50).
🔧 Tank Setup Requirements (for Both)
- Minimum tank: 20 gallons — sized for the larger fish in the pair.
- Temperature: keep it between 77°F and 78°F.
- pH: maintain 7.0 – 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 20+ gallons:
Beneficial bacteria for tank cycling
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.