what kind of coral is this?

[OSIDEARNOLD]

What kind of coral is this? i just got it from my friend who just broke down his tank. Its not doing so well in my tank. Just wondering how to take care of this thing. If i cant keep it healthy, i'll just give it to my coworker. Dont want to do it, but i dont want it to die. Thanks for your help

Arnold

its the green one in the middle
http://img.photobucket.com/albums/v606/osidearnold/coral.jpg

[jason142]

pic??

[OSIDEARNOLD]

hahaa... forgot about the pic. there u go! thanks!

[Nick_Kun]

It's a Lithophyllon undulatum. It's in the chalice family.

[OSIDEARNOLD]

thank you