Maybe it is the fact that Darwin was right.... Small mutations can happen even in corals.. When they start shooting lazer beams out of their centers is when you should worry, other then that, I say leave them be.
I mean our culture is obsessed with the "perfect" body type (for a coral). You see all the pictures in print about how corals "SHOULD" look and that puts pressure on us and our corals to meet some unobtainable level of perfection. It is unhealthy I tell you. You start to get corals that don't want to eat just so their polyps do not get "too" big! My anemone spits up every shrimp I feed it but only after lights are out just so I can not see him do it. And it is not only my corals doing this stuff. I saw a red leg hermit with no shell the other day, running around naked and flashing "personal" area. I can only imagine he learned it from Britney Spears. Do not even get me started on the Flame Angel that keeps running into rocks and dropping this "white powdery substance" that I am SURE is not calcium!! I can only blame Lindsey Lohan for this latest behavior! When will we, as members of society, put a stop to all of this?!? I am ashamed of you Loren, you are just feeding fuel to the fire! I think your polyps need to come live in my tank so they can see that they will be love even with their imperfections!!!