Coral reefs, which cover less than 0.2% of Earth’ Ocean surface, are considered the most diverse marine ecosystem . Fish and corals naturally come to everybody’s mind when thinking about coral reefs because they are the most conspicuous animals, but most coral reef biodiversity is in fact made of small (<2mm) cryptic species that belong to very diverse yet poorly known groups. These masters in hiding are usually colorful fascinating creatures. Check out the pictures!
Periclimenes cf. inornatus in Heteractis magnifica