Black boarfish are a fish from the family of Salmonidae. They are a hardy and popular fish, often found in fresh or salt water. They are a small fish, around 2 inches in length, but can grow to 6 to 8 inches. They have a long, slender body, and a big, round head. They are usually black, but can be white, yellow, or light brown. They are a schooling fish, and will often congregate in groups of several