Reduces waste for cleaner water. Wardley takes care of the science so you can enjoy your fish! Wardley Advanced Nutrition Perfect Protein Goldfish Flake Food is a breakthrough formula that provides the essential amino acids that goldfish require. Amino acids are the building blocks of muscle and growth and the right balance is critical for good health. Amino acid content, rather than protein percentage, determines a food's quality, digestibility and overall nutrition. Wardley Advanced Nutrition Perfect Protein Goldfish Flake Food is the first fish food designed to provide the ideal balance of the essential amino acids your goldfish require without over-supplementing protein. Cleaner water-Fish cannot utilize more amino acids than they require. Wardley's Perfect Protein is formulated to maximize protein utilization and reduce fish waste. Reducing fish waste maintains a healthy environment for your fish. Depend on Wardley-caring for fish since 1950. Made in USA.