Betta Fish vs Neon Tetra

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

Betta FishNeon Tetra
DifficultyBeginnerBeginner
Adult size2.5-3 inches1.5 inches
Lifespan3-5 years3-5 years
Min tank size5 gallons10 gallons
Water temp76-82°F72-78°F
pH6.5-7.56.0-7.0
TemperamentSemi-aggressive; males aggressive to each other, can be kept with docile tank matespeaceful
Tank matesSmall peaceful fish like neon tetras, corydoras, and snailsOther small peaceful fish like rasboras, corydoras, and small tetras.
DietCarnivorous; feed high-quality betta pellets or flakes once or twice daily, supplemented with frozen or live foods like bloodworms or brine shrimp.Omnivorous; feed high-quality flake food, micro pellets, and occasional frozen or live brine shrimp 2-3 times daily in small amounts.