King British Algae Wafers are a complete food presented as dark-green discs approximately 15mm in diameter. They are designed to sink and provide a balanced diet with 45% protein, developed to meet the nutritional needs of all bottom-feeding algae eaters including Corydoras, Loaches & Plecs. The vegetarian wafers contain both Vitamin C and our unique IHB 'Health Booster' to aid fish health. They are designed to remain stable in the water for up to 3 hours allowing grazing fish to take their time to eat the food.