Saddleback clownfish

Amphiprion polymnus has a dark brown to black body with a broad white band on the back resembling a saddle, and a white band behind the eye. The tail is white or pale yellow. It is usually associated with sea anemones (Heteractis magnifica, Stichodactyla haddoni). In the aquarium, it is less hardy than Clark's anemonefish but still easy to keep. It is territorial but peaceful with other fish.