I bought a piece of live rock about 6 months ago and it had a tiny polyp looking thing. it was the size of a pea so i figured it was a zoa. after 3 months it was the size of a nickel and i decided it was a mushroom. Now 6 months later, i moved the rock and the critter moved from the high light spot i faced it, into a lower lit area. I then established it was a carpet anemone. I never fed it until recently and it loves chunks of shrimp. It is now growing fast! Colors change a little from dark colors to more bright purples greens and orange. What kind of carpet anemone is it?