Our Active Nutrition Granules are excellent perfectly balanced food for tropical and coldwater fish. Each granule measures approximately 3 mm long in a 2 mm diameter. It is universal food for all types of fish such as Barbs, Bettas, Catfish, Characins, Cichlids, Danios, Gobies, Goldfish, Gouramies, Killifish, Livebearers, Loaches, Minnows, Rainbowfish, Rasboras, Snails, Shrimps, Salmon, Trout, Koi, Tilapia, and so on. These are sinking granules. The new and improved high protein and high-fat formula provide the required proteins, fats, and amino acids for excellent growth rates and the vitamin, enzyme, and mineral supplements to help maintain the fish in good condition and excellent health.