Appearance and lifestyle:
The crescent-tail wrasse (Thalassoma lunare) is a brilliant green blue with an oblong body with a rounded pink head that has irregular blue stripes. Adult males are a greenish-blue with a striking yellow crescent-shaped tail. Females and juveniles have blue bellies and purple vertical stripes on their flanks.
Habitat:
These wrasses are found on coral reefs throughout the Indian and Pacific Oceans.
Diet:
They stay in small groups, searching for small invertebrates to feed on.
Threats:
Overfishing, climate change, habitat loss etc.
Grows to 25cm long
They remove parasites from large fish.