And, please, don't just say 'Chinatown' . :-( I went on Spadina today and check out two grocery stores - both north of Dundas. One on the west side, where you go downstairs (something with 'Orient'?) and the other one on the east side, with the big red sign. I could not find any fish stock. Maybe I did not know where to look. Unfortunately, the help wasn't too helpful because of the language barrier. I found the chicken broth cans, though. :-)
So it would be great if you could give me an idea of a brand (ideally, without preservatives; I don't suppose there is an organic version, is there?) or a certain store that carries the product.