I got both of the varieties from Marie. The one like yours was quite small when she gave it to me. I actually have two colonies of it now. I cut it in half a while ago and moved a piece to another spot in the tank. One of them is touching some Colt Coral but nothing is going on there. Must be just SPS it has a problem with. Maybe I'll move a frag of something close to it and see what happens. You've got my interest piqued now.
