Hi, sorry for this late reaction, but uhh, this picture shows a anemone, its not a coral, its compleet week and attaced on a hard underground such as a rock, shell or dead coral. these kind are in ( as far as i know) in 3 diffrent collors White/pink, (like on the pic) White black, and compleet white, My experiance with this kind is  that if have some poison, after grab this anemone my whole hand get tinteling. This kind is also very difficult to keep in your reef tank if your tank water quality is not compleet perfect. like.. my water temperature was below 20 C. it shrink. and above 30 as well.

strange ... but my tank create ecactley the outside seawater temperature, i live 10 steps near the sea i can pomp and sirculate right from the sea but i dont do that but still i use a temperature scanner who got the same temperature diffrence from outside under water. any way, i know the Thai name for this anemone but i can't write that down in thai , gues you wont understand it as well.

Pardon my ignorance but what is the name of this coral?