Koi love silkworms. it is an ideal treat for your koi. They contain many valuable proteins that ensure rapid growth and carotene that ensures more intensive colors of your koi. Silkworms also prevent growth abnormalities. By feeding silkworms you can get your koi tamed quite easily! Silkworms are also very suitable as turtle food! Analysis: Crude Protein 48%, Crude Fat 28%, Dietary Fiber 2.2%, Ash 4%. Vitamin: No added Vitamin. Preferably feed at a water temperature of 18 degrees and more. For better digestion, you can soak them in lukewarm water for 1 to 2 hours. Never feed more than the fish can eat in 5 minutes.