Also known as the golden belly barb or lemon barb, is a species of cyprinid fish. It is native to the Mae Klong, Mekong, Chao Phraya, Tapi and Pahang rivers in Mainland Southeast Asia. It is a mid-water schooling fish that can reach up to 18 inches. It has beautiful shiny metallic diamond shapes scales. The body develops a yellowish sheen and the fins are bright yellow. This is my favorite of all the larger barbs.