So I cut the rock off where it was at and placed it in my 12 gallon nano and was there for 3 days and then I was gone off the rock no where to be found... So if I find it I will let you know so I might be thinking that it is a plate coral because dude said it falls off and relocates it self
. Either way I can not find it as of now so please keep the resposes coming if others think it is something different. And yes it is 3dimentional.