False clown fish

Wikipedia: "One can differentiate between Percula (true) and Ocellaris (false) by their respective colors and patterns. Ocellaris are usually less vibrantly colored, and have 11 dorsal fin-spines instead of 10, as on the Percula. Also, the species have different eye arrangements: Percula have bright orange irises, making their eyes appear smaller, whereas Ocellaris have grey/orange irises which make the species eyes appear bigger."

Percula also have broader black lines in its pattern. (according to an aquarist friend of mine)

Thank you Jerzer. Hey how can you tell the difference on the two?