Happiness aquarium in mong kok! Not sure if the shop above is the same store.
It's a cool shop. Man I miss hong kong and
Gold fish street. Not been back for 4 years.....
i've been there and went up to that shop last summer, its about 19-20" , very nice color , light golden yellow and solid black, but the bars are a lil fuzzy -edged.... and there was a lince cat in a 400ish gal tank inside
amazing