It started growing on a piece of rock that I bought for the zoos. My brother noticed him first, as I had it in the back of my 50 gallon reef. I now have him in my 14 gallon reef. I have been feeding it small pieces of shrimp and it started to grow really fast. Is there anything special I should be doing for it?
So I was just rearranging the aquarium and touched the mystery coral and it has a hard skeleton. So you are all correct, it is a plate coral. Thank you very much for your help.