Coral How much light and current?

[90corner]

I have numerous corals but i have one that does not open. I am not sure if it has to much light or to much current. First i need to ID this coral. where on the site can i find an encyclopedia of these corals?

 

[jcarlilesiu]

Best if you post a picture in the ID section of the forum and let some of the members tell you what you have.