Brachirus selheimi, commonly known as the Freshwater Sole or Papuan Freshwater Sole, is a species of flatfish native to northern Australia and New Guinea, inhabiting freshwater and brackish waterways. It's a bottom-dweller that burrows in fine sand, has a mottled brown appearance, and is popular in the aquarium hobby for its unique look, though it requires specific care, often needing live or frozen foods like bloodworms and mysis shrimp.