arod... that is not completely true. False can have black in the middle stripe too
Some facts:
True Percula
# Because of its name, Amphiprion percula, it is the True Percula Clownfish.
# Typically orange in color with three white bars, with the middle bar having a forward-projecting bulge.
# Has 10 (rarely 9) dorsal spines.
# Usually has jet black margins of varied widths around its white bars, often of which can be rather thick.
# Distribution of this species in nature: Northern Queensland and Melanesia (New Guinea, New Britain, New Ireland, Solomon Islands, and Vanuatu)
False Percula
# Typically orange in color with three white bars, with the middle bar having a forward-projecting bulge.
# Has 11 (rarely 10) dorsal spines.
# The spinous (anterior) part of the dorsal fin is taller.
# May have no black margins present, but most often has thin, never thick black margins around its white bars.
# Distribution of this species in nature: Andaman and Nicobar Islands (Andaman Sea), Indo-Malayan Archipelago, Philippines, northwestern Australia; coast of Southeast Asia northwards to the Ryukyu Islands.