I got my 75 gallon a week ago. I transferred the water from my old 30 gallon along with the the fish. Then I transferred the decorations. When I was all done. My wife noticed the red zebra was missing. I thought I accidentally lost him in the water transfer somehow. Today I rearranged the decorations and when I was done, my wife noticed the red zebra was back. Apparently he was caught under a fake rock decoration that has a hollow cavity. I can't believe he lived for a week trapped inside that rock. He seems fine but a little angry.