HAHAHAHA totally it looks like a mini "Death Star"!It's an alien pod. ;-) Love it!
Great pictures!
I think it is not growing babies though. I doubt they re populate in that manner. They most likly are egg spawning corals. It looks more like it is just growing and getting ready to spread. This is still very cool and I congratulate you on keeping the correct water parameters for this species. Could you post all your stats and parameters for us to read over? Include salt, salinity, and temperature.
Thanks