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Corydoras catfish, often called cory cats, are among the most popular freshwater aquarium fish thanks to their peaceful nature, charming behavior, and practical role as bottom dwellers. Native to South America, corydoras thrive in community tanks where they actively forage along the substrate, helping to clean up leftover food without disturbing plants or tank mates. With over 160 recognized species, including favorites like bronze, panda, and sterbai corydoras, these small armored catfish offer both variety and visual appeal. Corydoras catfish are hardy, beginner-friendly fish that prefer to be kept in groups of six or more, as schooling enhances their natural behavior and reduces stress. Requiring soft substrate, well-oxygenated water, and stable parameters, cory cats are an excellent choice for aquarists looking to add movement, personality, and balance to a freshwater aquarium.