Used to eat the store bought farm raised Tilipia until I saw Mike Rowe on Dirty Jobs working at a Fish Farm. They raised Salmon in the concrete run pens. Once they harvested the Salmon, they put Tilipia fry in the runs. The Tilipia gorged themselves on the uneaten food and the poo from the Salmon. The fisheries people said the Tilipia scoured the pens clean. Mike, who was chest deep in the pens with the Tilipia when he got that info, was not happy to learn that tidbit.
I would like to try a wild Tilipia from clean water.

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