What is "cladiella"

Cladiella is a genus of soft corals native to the Indo-Pacific region. These corals are commonly known as colt corals or finger leather corals and are often kept in reef aquaria. They grow fast, have short rounded or conical lobes and are sticky to the touch owing to the production of much mucus. They are creamy or pale grey in colour. The polyps are fully retractable and give the colony a fluffy look when extended. They may be a contrasting green or brown hue.