So i went to big als yesterday and purchased what i thought was a goniopora coral when in fact is isnt. I believe the coral i bought is a type of tree coral. Its pink looks like a tree and prickly like a cactus. Does anyone know what kind of coral this is? Also its sort of flopped over in my tank due to it being unhappy. Can someone tell me how to make it happy. Does it like low or high flow, or strong lighting