The Spaghetti Sinularia Leather Coral (Sinularia flexibilis), also simply known as Sinularia, are a type of colorful leather corals found throughout the Indo-Pacific. They have central stalks or trunks with smaller polyp extensions, sharing a similar appearance with Kenya Tree Coral or some Goniopora. They rely on a combination of light and nutrients in the water to thrive, so dosing occasional, supplemental phytoplankton is recommended. The Spaghetti Sinularia is very thin and long compared to normal Sinularia and almost exhibits a grass like appearance when grown in large colonies.