They are known for their distinctive way of swimming on their backs.
They raise their heads and front fins above the water level, which helps them with breathing, and their wide tails work like ballast to help them swim.
Eating a royal blue tang will result in ciguatera fish poisoning.
Every species of reef fish carries ciguatoxin and maitotoxin from the consumption of small organisms. One in 1,000 cases of poisoning will end up in death.
Males solicit for female attention, and once they succeed, they mate for life. However, if a female is not interested in a certain male, she will scare him off.
