September 8th, 2011: Tokyo, Japan - A woman looks at a designer fish tank in the &quot;Art Aquarium&quot; exhibition held at Nihonbashi Mitsui Hall in Tokyo, Japan. There are over 1,000 of golden fish on display with colorful lights and uniquely shaped of tanks. Traditionally the goldfish is a common Japanese pet but they are rarely seen in such luxurious surroundings. The exhibition runs until Sunday 12th September and is open at night too as a bar.