There are dozens of street markets in Mong Kok crowded with vendors selling “designer” purses, cell phones and t-shirts. The most interesting and unique section is down North Tung Choi street: an area colloquially known as Goldfish Street.
As the name implies, the street is devoted to all things with gills. Here you will find over forty fish shops spilling over with everything from colorful goldfish in ballooning plastic bags to aquariums full of tropical fish. Turtles, lizards and even puppies are also for sale.
Fish are a popular pet in tight-spaced Hong Kong so this area is often crowded and busy. Many sellers are adverse to pictures, but it's fun to just stroll the street and observe the spectacle. The best time to visit is at night when the stores are illuminated and the fish look particularly exotic.