The sandy brown bigmouth buffalo is a species of fish from the family Cyprinidae. They are the largest and most common fish in salt water. They reach a size of 2 to 2.5 inches in length. They are found in both fresh and salt water. They are a feeder fish and eat small crustaceans, small fish, and small worms. The sand brown bigmouth buffalo is a good fish for those who like to keep their fish in a bowl or aquarium