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I fragged it and put a bit in my friends tank!! It's getting bigger now and splitting but it eats eats eats there is a person with a pic at the top of this thread that has something similar in colourings, but I don't see many in LFS
Looks a bit like doughnut coral I have some and its pretty similar to your pic that's what the girl at the shop said it was google it and see what you think hope this helps