I don’t think so but anything is possible at this point! I did look through photos of green leptastrea just now and it doesn’t quite look like this. I’m pretty sure it has a fairly smooth skeleton and unfortunately, I’ve killed a leptastrea before and their skeletons seemed a lot more sharp and pointy. I have not managed to kill one of these yet to really inspect the skeleton but I have cut it with bone cutters.Not a Leptastrea?