Ok, I just got a watchman goby sunday night to liven up the
live sand I recently very carefully put into my aquarium. He has happily made himself a little burrow and everything and eats the food I put in the tank for the clown and him. Today I was watching him as he is a very interesting fish and noticed something. He grabbed one of the hermit crabs by the shell and dragged it into his burrow. Is this normal behavior for this type of fish? I've never read about this happening before.
BTW, I am aware my tank is overstocked.