Have had a decorater crab for a while now. Put a Zoanthid colony in my tank a couple weeks ago, and the thing somehow started harvesting them for it's own gain. I looked in the tank one morning and saw an isolated colony, then realized it was that darn crab covered head to toe in them. I thought it was hilarious because all the zoanthids were alive, opened up and doing well, and they still seem to be fine living on the back of this crab. Anyone else ever dealt with this? I'll put the pics on tommorrow