bzypetfood
https://www.bzypetfood.com/products/puffed-feed-for-koi-fish.html
The main nutrients of fish koi food include protein, fat, optional carbohydrates, feed vitamins and minerals. Protein is an important component of overall koi growth and tissue repair, fat provides the introductory energy required by koi, and carbohydrates are the main source of energy for Koi. Vitamins and minerals play an important role in koi's health and immune system.