my ram is MEAN! but anyway he hides most of thee time in a rock cave i built for him- he doesn't like people (maybe he can sense my hostility). if it is a big shell then that would be great. he is always exploring little crevices. they are kind of delicate, though (mine is the exception- i had three others that didn't last long)- sensitive to ammonia and need a low ph.
lol mine kept eating off my angel's fins so i put him in a high ph brackish tank (it is the only other place i had to stash him), and he is still alive. hey, you can have mine! he's like that cute little puppy that you bought cause he was pretty, and then he chewed up all your favorite shoes and bites all the time.