Ryan,
Yes that Moon Coral sits on my sandbed and it is one of my favorite corals. The centers are an awesome flourescent green, especially under actinic lights. It is very cool at night when the hundreds of tentacles come out for feeding. They are about 1/2" - 3/4" long and make the coral look all fuzzy. I've seen some of the sweeper tentacles reach out 6"-8"
This is the best shot I have right now and it does not do justice to the colour of the coral.
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