Aquascape AQSC Prem Fish Flakes, 15-Ounce Large-sized pond fish food pellets specially formulated for cold water conditions; 44-pound package Contains wheat germ, making it ideal for use in water as cold as 50 degrees Probiotics aid in digestion and reduction of fish waste; contains stabilized vitamin C, high-quality protein Will not break apart and cloud water; keeps pond water clean and clear Ideal for large fish (8 inches and larger), including koi and goldfish