Can Ember Tetra live with Paradise Fish?
These two species are usually compatible in community tanks.
Why Ember Tetra and Paradise Fish Work
These two species overlap in both temperature (73–82°F overlap) and pH (6.0-7.0 overlap range). Their temperature tolerances are close enough, and neither fish pushes the pH so far outside the other's comfort zone that it creates chronic stress. The temperament match (peaceful + semi-aggressive) is low-conflict. In a 20+ gallon tank with adequate hiding spots, these two can coexist with minimal problems.
Ember Tetra
Hyphessobrycon amandae
| Adult Size: | 0.8" |
| Temperament: | peaceful |
| Min Tank: | 10 gal |
| Temperature: | 73-82°F |
| pH Range: | 5.5-7.0 |
Paradise Fish
Macropodus opercularis
| Adult Size: | 3.5" |
| Temperament: | semi-aggressive |
| Min Tank: | 20 gal |
| Temperature: | 65-82°F |
| pH Range: | 6.0-8.0 |
Water Parameter Overlap
| Parameter | Ember Tetra | Paradise Fish | Overlap |
|---|---|---|---|
| Temperature | 73-82°F | 65-82°F | 9°F ✓ |
| pH | 5.5-7.0 | 6.0-8.0 | 1.0 ✓ |
Compatibility Breakdown
Temperament Match: peaceful + semi-aggressive. Semi-aggressive → watch territory and feeding.
⚠️ Size Predation Risk: Ember Tetra (0.8") vs Paradise Fish (3.5"). A 2.7" gap — the larger fish will view the smaller fish as food.
Score: 100.0/100 (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 73°F and 82°F.
- pH: maintain 6.0 – 7.0.
- Hiding spots: essential for Ember Tetra — 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:
Small pellet for labyrinth fish community tanks
Explore Related Checks
See what else works with these fish:
Accuracy note: This tool uses expert rules + FishBase.org data. Individual fish behavior varies — a peaceful individual Ember Tetra 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.