Those are sterile in a temperate environment. People stock them here to keep ponds and lakes cleaned of vegetation. They will eat grass on the shore once they clean a pond up. Those are decent to eat. Guy here had a fish market on the riverbank. He had bought the fish when some one drained a watershed lake. He cleaned them and cooked some one day when I was fishing. He offered me a piece of it and it was decent. Not like the European carp.
I bet it’s really good with some grape drank.
