Can Jack Dempsey Live With Ornate Tetra?
Jack Dempsey and Ornate Tetra are NOT compatible tank mates.
Detailed Analysis
Temperature
✓ Compatible
Good temperature overlap at 73–82°F.
pH
✓ Compatible
Good pH overlap at 6.5–7.5.
Size
⚠ Use Caution
Significant size difference (10" vs 2"). Jack Dempsey may bully or stress Ornate Tetra.
Temperament
✗ Not Compatible
Jack Dempsey (aggressive) is not compatible with Ornate Tetra (peaceful). Aggression or stress is very likely.
Swim Level
⚠ Use Caution
Both fish occupy the middle level and Jack Dempsey is territorial. Provide plenty of space and hiding spots.
Trait Conflict
✗ Not Compatible
Jack Dempsey is a predator and may eat Ornate Tetra.
Important Notes
- Ornate Tetra is a schooling fish and needs at least 6 of its kind.
Tank Requirements
Minimum tank size for this combination: 63 gallons
| Parameter | Jack Dempsey | Ornate Tetra |
|---|---|---|
| Temperature | 72–86°F | 73–82°F |
| pH | 6.5–7.5 | 6–7.5 |
| Max Size | 10" | 2" |
| Temperament | Aggressive | Peaceful |
| Swim Level | Middle | Middle |
| Min Tank | 55 gal | 15 gal |
Check More Combinations
Use our compatibility checker to add more fish and plan your complete tank.