Betta Fish vs Goldfish
Side-by-side care comparison to help you choose.
| Betta Fish | Goldfish | |
|---|---|---|
| Difficulty | Beginner | Intermediate |
| Adult size | 2.5-3 inches | 6-12 inches (depending on type) |
| Lifespan | 3-5 years | 10-15 years |
| Min tank size | 5 gallons | 20-40 gallons |
| Water temp | 76-82°F | 65-75 F |
| pH | 6.5-7.5 | 6.5-7.5 |
| 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 goldfish; avoid fin nippers and small fish that fit in mouth. |
| 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 sinking pellets or gel food, supplemented with blanched vegetables (peas, zucchini) and occasional bloodworms. Feed 2-3 times daily in small amounts. |