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Re: More Fishes :p
Goldfish have a memory span of several months and are perfectly capable of recognizing a human that feeds them. I have seen many goldfish beg at the front of tanks for food, same as other fish. They can even be trained to perform tricks.
Goldfish have been kept as pets for hundreds and hundreds of years, and were the first truly domesticated pet fish, so this gives them their iconic status.
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