One of the most popular species of gourami in the aquarium trade, the Pearl Gourami is also called the Lace Gourami. These fish are often found in the mid to upper level of lowland swamps and streams throughout Thailand and Malaysia as well as the islands of Sumatra and Borneo. Pearl Gouramis have light brown bodies often covered in white, pearl-like spots. The nickname Lace Gourami comes from the black line running along the entire body from the nose, through the eye, to the base of the caudal fin.