Is that a birdsnest? if it is, I had the same happening to me a while back with a huge colony I had, thankfully I had accidentally knock out some pieces while doing maintenance and I had put the little frags in different places of the tank and they are now growing and doing fantastic.
I was talking to Ralph (fragGuy) this morning and he suggest that it is good practice when you have corals to break some pieces and just plant them in different places of your tank for insurance purpose, I think I am going to start doing this.