Goldfish vs Neon Tetra

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

GoldfishNeon Tetra
DifficultyIntermediateBeginner
Adult size6-12 inches (depending on type)1.5 inches
Lifespan10-15 years3-5 years
Min tank size20-40 gallons10 gallons
Water temp65-75 F72-78°F
pH6.5-7.56.0-7.0
TemperamentPeacefulpeaceful
Tank matesOther goldfish; avoid fin nippers and small fish that fit in mouth.Other small peaceful fish like rasboras, corydoras, and small tetras.
DietHigh-quality sinking pellets or gel food, supplemented with blanched vegetables (peas, zucchini) and occasional bloodworms. Feed 2-3 times daily in small amounts.Omnivorous; feed high-quality flake food, micro pellets, and occasional frozen or live brine shrimp 2-3 times daily in small amounts.