Ok here is the other pic I was talking about. Behind the crack in the glass (which is a nice touch isn't it?) you can see one fish is starting to float. Lol and Chinese restaurants with tanks means they have fresh seafood!!
http://www.flickr.com/photos/52902249@N07/6458246907/
These fish aren't really swimmers. Even when alive you can't really tell if they are dead or not. Which I guess was what this Chinese place was hoping for?