Can Congo Tetra Live With Celestial Pearl Danio?
Congo Tetra and Celestial Pearl Danio are not compatible due to size mismatch or behavioral conflicts.
Parameter Comparison
| Parameter | Congo Tetra | Celestial Pearl Danio | Overlap |
|---|---|---|---|
| Temperature | 73–82°F | 72–78°F | 73–78°F ✓ |
| pH Range | 6–7.5 | 6.5–7.5 | 6.5–7.5 ✓ |
| Temperament | peaceful | peaceful | Both peaceful ✓ |
| Max Size | 3.5" | 1" | Size mismatch ✗ |
| Min Tank Size | 30 gal | 10 gal | 30 gal minimum together |
| Diet | Omnivore | Omnivore | — |
| Care Level | intermediate | beginner | — |
Species Profiles
Congo Tetra
Phenacogrammus interruptus
Congo tetras are the showstoppers of the tetra family. Males develop spectacular flowing fins with an iridescent rainbow sheen that shifts from blue to gold to green under aquarium lighting. They are larger than most tetras (up to 3.5 inches) and need a spacious, well-planted tank to display their full beauty. Peaceful but shy — they thrive with calm tank mates.
Full care guide →Celestial Pearl Danio
Danio margaritatus
Celestial pearl danios (also called galaxy rasboras) are tiny, jewel-like fish discovered in Myanmar in 2006. Their dark blue body is covered in iridescent pearl-white spots, with bright orange-red fins striped with black. Despite their exotic appearance, they are hardy and easy to care for — one of the hobby's best-kept secrets for nano tanks.
Full care guide →