The koi carp (Cyprinus carpio), sometimes known as the Japanese carp, is a popular decorative fish in Indonesia. Learning what and how much to feed koi carp is only one of many skills necessary for keeping these fish healthy and happy. With this study, we want to learn more about the feeding management practises used by BBI Ciparay, a koi carp broodstock facility in the Bandung Area of West Java, Indonesia. Field Practise took place at the Fish Seed Institute (BBI) in Ciparay, in the Jakarta Province of West Java, beginning on June 27 and ending the following July 27. Direct observation was an integral part of the producing strategy used during Field Professional Practice. This led to the collection of both primary and secondary information. The information was collected via careful observation, in-depth interviews, and a review of the related literature. When raising koi fish, BBI Ciparay follows a three-step feeding process. The egg yolk is given to the larvae after they reach the fourth day of their life. Now the first phase may begin. In the second phase, between long weeks 5 and 9, the larvae are fed synthetic Feng-Li FL 0 crumbles fertiliser. To enter this phase, the feed size must be smaller than 0.7 mm. After this, the seeds are fed Bintang 777-3, a synthetic sinks feed, in two different sizes (3 mm and 5 mm). After 11–19 days of germination, this process begins. The development of koi carp begins with a diet rich in protein and carbohydrates, but it is supplemented with MAX C+, a type of vitamin C.