Betta Fish vs Cardinal Tetra
Side-by-side care comparison to help you choose.
| Betta Fish | Cardinal Tetra | |
|---|---|---|
| Difficulty | Beginner | Intermediate |
| Adult size | 2.5-3 inches | 1.5-2 inches |
| Lifespan | 3-5 years | 3-5 years |
| Min tank size | 5 gallons | 10 gallons |
| Water temp | 76-82°F | 74-80F |
| pH | 6.5-7.5 | 6.0-7.0 |
| Temperament | Semi-aggressive; males aggressive to each other, can be kept with docile tank mates | peaceful |
| Tank mates | Small peaceful fish like neon tetras, corydoras, and snails | Other peaceful community fish such as small rasboras, tetras, and dwarf cichlids. |
| Diet | Carnivorous; feed high-quality betta pellets or flakes once or twice daily, supplemented with frozen or live foods like bloodworms or brine shrimp. | High-quality flakes, micro pellets, and frozen foods like bloodworms and brine shrimp; feed small portions 2-3 times daily. |