Betta Fish vs Rummy Nose Tetra

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

Betta FishRummy Nose Tetra
DifficultyBeginnerIntermediate
Adult size2.5-3 inches2 inches (5 cm)
Lifespan3-5 years5-6 years
Min tank size5 gallons20 gallons
Water temp76-82°F75-82°F
pH6.5-7.55.5-7.0
TemperamentSemi-aggressive; males aggressive to each other, can be kept with docile tank matespeaceful schooling fish
Tank matesSmall peaceful fish like neon tetras, corydoras, and snailsOther peaceful tetras, rasboras, corydoras catfish, and dwarf cichlids like Apistogramma.
DietCarnivorous; feed high-quality betta pellets or flakes once or twice daily, supplemented with frozen or live foods like bloodworms or brine shrimp.Omnivore: feed high-quality flake or micro pellets daily, supplement with frozen or live brine shrimp, daphnia, and bloodworms 2-3 times per week.