Emperor Angelfish (Pomacanthus imperator) Juvenile, Sub-Adult, Adult
Many species of marine angelfish have different juvenile and adult colourations. The colour shifts are also believed to be linked to the social rank of each individual fish.
All marine angelfish are known to be protogynous hermaphrodites. They are born female, and may develop into a male due to external triggers. If a dominant male of a harem is removed, then a female will develop into a male to replace him.
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