Y-shaped Algae

Found as creeping mats, on reef tops and slopes. Low profile with Y shaped branches, varies in colour from blue to green with brown specks.
Length - Creeping Mat
Widespread - Circumtropical

As many as 9000 species of algae are spread across the worlds oceans, some can be as much as 30 metres across while others are just a slippery scum over rocks.
Algae grows wherever there is enough light and life supporting conditions.
They support a huge number of marine life both for food and as a home.