I've read a bunch of conversations about wrasse's burying themselves in the sandbed and making a re-appearance days or weeks later. However, my yellow coris wrasse has been in my tank for nearly 9 months and like clockwork wakes up and goes to bed around the same time each day. All of a sudden yesterday and today he has not shown up. My tank has a lid, but I checked everywhere anyway, and there are no new tank mates. I was just watching him eat 2 days ago and he seemed perfectly normal. He is my favorite fish to watch, so I'm missing my buddy. I'm just hoping some of you more experienced wrasse owners out there have experienced a wrasse or 2 disappear for a few days then come back like nothing was wrong. I know where he sleeps in the sand bed every day too, but I'm not going to try to disturb him.