Cool, mine is almost 5 inches long... he is a beast!... eats everything from algae to flake food, to brine shrimp.
My silly wife even brought home a very very small hippo tang once ( i road her for it, this thing was the size of a quarter and was already sick) and the LMB thought it was flake food and tried to eat it !
Only thing about my LMB that bugs me is he likes to poop right out in the open...
he needs to keep that mess behind the rocks...
But other then that he is a spectacle to watch