Betta Fish vs Pea Puffer

Side-by-side care comparison to help you choose.

Betta FishPea Puffer
DifficultyBeginnerIntermediate
Adult size2.5-3 inches1-1.5 inches
Lifespan3-5 years4-5 years
Min tank size5 gallons10 gallons
Water temp76-82°F74-82°F
pH6.5-7.56.5-7.5
TemperamentSemi-aggressive; males aggressive to each other, can be kept with docile tank matesSemi-aggressive; can be nippy, especially among conspecifics; best in species-only tank
Tank matesSmall peaceful fish like neon tetras, corydoras, and snailsBest kept alone or with fast, small fish (e.g., danios, rasboras); avoid long-finned or slow fish
DietCarnivorous; feed high-quality betta pellets or flakes once or twice daily, supplemented with frozen or live foods like bloodworms or brine shrimp.Carnivorous; requires live foods (snails, bloodworms, brine shrimp) daily; may accept high-quality frozen foods