Goldfish vs Harlequin Rasbora

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

GoldfishHarlequin Rasbora
DifficultyIntermediateBeginner
Adult size6-12 inches (depending on type)2-2.5 inches
Lifespan10-15 years5-8 years
Min tank size20-40 gallons10 gallons
Water temp65-75 F74-80°F
pH6.5-7.56.0-7.5
TemperamentPeacefulpeaceful
Tank matesOther goldfish; avoid fin nippers and small fish that fit in mouth.Other peaceful community fish such as tetras, rasboras, corydoras, and dwarf gouramis.
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 quality flake food or micro pellets daily, supplemented with brine shrimp or daphnia 2-3 times per week.