There are two kinds. The ones that looks like a fish, or a cube. These are served in AYCE hot pots. They are not that great.
The other ones are fish PUFFs. They are like tofu puffs, but fish paste is in it and the middle is empty. You can only get these in selected hot pot places. E.g. Garden city hot pot. (topgun richmond)
As for myself, i have never seen them in an asian grocery store... Maybe there's a wholesale supplier for it. Ask the hot pot place ppl?
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