The bar's name blatantly announces what placidly swims in the showcase aquarium: live sea horses. The gracefully curved creatures add whimsy to the long, narrow lounge and give new meaning to the term captive audience. The tiny fish bedazzle barflies who are gulping martinis as if they were downing water. Kudos to the hotel's owners, the Rubell family, for deciding against stocking the tank with the other animals also known as sea horses -- walruses.