The McCullochi Clownfish is the rarest clownfish in the hobby. This is due to their small natural range off the coast of Lord Howe Island, and the fact that this area is closed to fishing. The McCullochi Clownfish is brown to black in color with one white head bar, and a white tail. Juveniles tend to be brown in color and exhibit all 3 bars. The McCullochi Clownfish are similiar in size to the Tomato Clownfish Complex, but tend to be more aggressive.