I bought this possum three months ago. The moment i put it in my tank he disappeared in the rocks. He never came to eat. even though i have a good amount of liverock, my tank just came out of a cupramine treatment so i knew my macro invertebrate population was basically inexistent.I was pretty sure he starved to death after i didn't see him for 2 weeks. Yesterday, before my lights came on, i saw a UF (unidentify fish lol) swimming in the open. On a closer look, i realize it was the possum wrasse(I even forgot about him). It was such a nice surprise. Few minutes later he went back in the liverock. I hope i ll see him in a few months again, with luck it ll be less than that.