Order Cypriniformes is a diverse group of freshwater fish that includes some of the most popular aquarium fish, such as goldfish and koi fish. However, there are other synonyms for this order of fish, depending on the classification system being used. For instance, some alternative names include the order Cyprinoidei, which is used in some phylogenetic studies to group the cyprinids, catostomids, and other related families. Additionally, some taxonomists use the name Ostariophysi to refer to the broader group that includes capfish, catfish, and cypriniforms. Nevertheless, regardless of the name used, the Cypriniformes remain an essential group of fish that provides both ecological and economic benefits across the globe.