What type of fish is golden fish?

Goldfish belong to the family Cyprinidae, which includes carp and minnows. While they are commonly thought of as small ornamental fish, they all start out as tiny fry and can grow to be quite large, even up to 12 inches in length, depending on the variety of goldfish. Goldfish are one of the oldest types of domesticated animals and have been kept in captivity for centuries. There are many different varieties of goldfish, each with its own unique characteristics and colors.