i'm sure it's run through a pump directly from the tank water, it would just be silly to have to hook it up to an actual water line.. and I doubt it works, it probably can't be turned on and off with the knob, that's probably just for decoration.
I just wanna know what the heck 'such a sea glance of feeling' is... that description cracked me up. I'm sure it made more sense in the language it was written in. The translation is cah-razy. No fish should ever be kept in that thing.