I was referring to Marine fish. Should have stated that. I believe Hong Kong is a Shipping Hub for product, in the same vein as the UPS and FedEx freight operations.
Goldfish are nothing. That's why they're so popular in China. They live in the family cesspool. They are a pretty trash fish. They are Carp. Very undemanding in their environmental requirements, other than intolerant to excessive heat. It's simple vertical integration of agricultural/natural resources.
Bullfrogs, Red-eared Sliders and Catfish should all equally fit that aquacultural model. May be a little too cool for Catfish. Just leave the Bullfrogs in the paddies and harvest them periodically. They'll take care of the crop's pests, in the mean time.
The thing about the Chinese is that they are very efficient. Very good at arranging the resources, so as a natural system functions on it's own and they reap the rewards with very little effort (other than the harvest). Too bad we can't be more like them in some ways.
jsc
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"As hard as I've tried, just can't NOT do this"
John Crickmer

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