The Arapaima, One of Guyana’s “Giants,” is the World’s Largest Freshwater Fish Flora and Fauna of Guyana The Arapaima, One of Guyana’s “Giants,” is the World’s Largest Freshwater Fish guyanagy December 7, 2022 Guyana is known as the land of the giants, and the arapaima, the world's largest freshwater fish,... Read More Read more about The Arapaima, One of Guyana’s “Giants,” is the World’s Largest Freshwater Fish