I have a 15 or so polyp frag of some kind of Zoanthid , they have neon green center with an olive colored skirt. I have had them for around 3 wks. now When i got them one of the polyps looked a little different. Now all but 3 or 4 have chocolate colored center with bloches of noen peach color and green tips on the skirt and the one that looked different at first is now all neon peach with a thin chocolate colored ring in the center and green tipped skirt i am new to saltwater aquariums does this happen a lot or am i just seeing things any way they look a lot cooler now