Can Betta Fish Live With Congo Tetra?
Betta Fish and Congo Tetra may coexist with careful monitoring, adequate space, and hiding spots.
Conditions: Minimum 30 gallon tank.
Parameter Comparison
| Parameter | Betta Fish | Congo Tetra | Overlap |
|---|---|---|---|
| Temperature | 76–82°F | 73–82°F | 76–82°F ✓ |
| pH Range | 6.5–7.5 | 6–7.5 | 6.5–7.5 ✓ |
| Temperament | semi-aggressive | peaceful | Monitor ⚠ |
| Max Size | 3" | 3.5" | Similar ✓ |
| Min Tank Size | 5 gal | 30 gal | 30 gal minimum together |
| Diet | Carnivore | Omnivore | — |
| Care Level | beginner | intermediate | — |
Tank Requirements for Betta Fish + Congo Tetra
To keep Betta Fish and Congo Tetra together, you need at minimum a 30 gallon tank. Congo Tetra should be kept in a school of 6+. Provide adequate filtration, stable temperature with a heater, and hiding spots to reduce stress.
Species Profiles
Betta Fish
Betta splendens
The Betta fish (Siamese fighting fish) is one of the most popular freshwater aquarium fish in the world, known for its stunning flowing fins and vibrant colors. Males are territorial and should be kept alone or with carefully chosen tank mates. Despite their reputation as low-maintenance fish, bettas thrive best in heated, filtered tanks of at least 5 gallons.
Full care guide →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 →