Cardinal Tetra vs Corydoras Catfish

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

Cardinal TetraCorydoras Catfish
DifficultyIntermediateBeginner
Adult size1.5-2 inches1-2.5 inches
Lifespan3-5 years3-5 years
Min tank size10 gallons10 gallons
Water temp74-80F74-80°F
pH6.0-7.06.5-7.5
Temperamentpeacefulpeaceful
Tank matesOther peaceful community fish such as small rasboras, tetras, and dwarf cichlids.Peaceful community fish such as tetras, rasboras, and dwarf cichlids.
DietHigh-quality flakes, micro pellets, and frozen foods like bloodworms and brine shrimp; feed small portions 2-3 times daily.Sinking pellets or wafers as staple, supplemented with frozen or live foods like bloodworms and brine shrimp; feed once or twice daily.