I must tell you of my experience with my snowflake, since 7/04. He's a joy to feed, but otherwise stays in his cave. He is fed daily a variety of fresh seafoods. But still, he ate my male Maroon clownfish. He topples the coral all the time, and causes havoc with the rockwork. He even broke off several coral that were affixed with Aquamend putty. He pecks at the hermit crabs, and I'm sure will eat them when they try to go to a new shell. If I could get him out, I'd give him to you. The only thing that has survived are snails. He's a voracious eater.
In my experience, he needs his own tank.
Angela