Mine is very skittish, and darts into a cave if it feels threatened. It hid for about the first 5 days I had it, but can now be found peeking out, or even exploring new caves. It has become very courageous lately, especially at feeding time. I have a percula clown who loves to eat right out of my hand, and now the gramma has made a few attempts at hand feeding as well (only w/ flakes though). It quickly swims up to my hand (as long as I've kept it still for a few moments), grabs one flake, then darts across the tank into its cave. Very entertaining, and a beatiful fish as well.