Yesterday, I noticed that my pleco had not come out of his log for over a week. So, I tried to shake him out. Unfortunately, it turned out he was stuck, because he is about as thick as the log. You see, one opening is big, and easy to get into, while the others are too small. He got in, was too big to turn around, and got stuck. We had to pry him out, and the ornament broke in the process.