In summer months, with water temperatures above 65 degrees Fahrenheit, koi and goldfish have an increased metabolism and require increased protein for increased energy needs. This is when PondCare Summer Staple Premium Pellet food is the perfect pond food for koi and goldfish. - For feeding fish when the water is warm, above 65 degrees Fahrenheit - Rich in easily digestible proteins, amino acids, and vitamins - Contains a stabilized vitamin C and a complement of important vitamins and minerals to help maintain the immune system of pond fish - Contains spirulina algae, chitin, and carotene to develop vibrant fish color - Has a high protein formula for growth and warm water nutritional requirements of all pond fish