the reedfish, ropefish, or snakefish - (erpetoichthys calabaricus), photographing in freshwater aquarium tank

polypteriformes polypteridae congo creature decoration swim hobby fresh wildlife yellow golden orange zoological exotic colorful endemic zoology erpetoichthys calabaricus decorative underwater lake tanganyika tropical aquarium rare fishes eel freshwater green shaped animal pet closeup aquatic snake snakefish ropefish africa tank river reedfish photographing commonly used species family bichirs member genus native brackish waters west central possesses pair lungs addition gills allowing survive oxygenpoor threatened habitat loss plantations agriculture deforestation urban development water fish