Tetra has been revolutionizing and improving fish nutrition since the company’s birth in Germany in 1951. Since that time, Tetra has developed one of the most comprehensive bodies of flake fish food knowledge in the world. A full team of biologists, chemists, and nutritionists continually study and discover what keeps fish thriving and living long, healthy lives. Tetra’s Flaked PondFood is formulated to create superb fish colors by bringing out the vibrant reds and yellows on koi and goldfish. Packed with proteins and amino acids that promotes growth, health and metabolism. Included fats are a great source of energy for your fish and will promote activity in your pond. Your fish’s digestion is aided by the included fiber in the flakes. Tetra’s Flaked PondFood is formulated for smaller outdoor goldfish and koi but as fish become larger it is recommended that you consider transitioning them to Tetra Pond Food Color Sticks.