Throught the kindness of a local reefer I'm getting a new gbta today also a bucket of seachem reefsalt and a frag rack yay! I'm plotting on making a nem island to try and discourge migration.. Anyone got any ideas to help slow him down or stay on his rock..yes I know it will go where it wants to I'm just trying to discourge it.. I figure if he is on a rock out in the middle of the sand that should deter it.. Any ideas?