It freaked me out the first day but it has been doing amazing ever since. It comes out and eats during the day and at night it hides in its little hole it made under the sand and rocks. Thankfully it got better. Assuming it was just super stressed from my clowns chasing it right out of the bag and also because it was put into a new home.I witnessed this kind of weird dramatic behavior in mine as well at the beginning. Almost acting dead the first few days in QT. Happened also in the tank after I re-aquascaped it one time.