Our growing goldfish problem University of Toronto Scarborough News

Why you should never release goldfish into lakes or ponds

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In The Wild, Goldfish Turn From Pet To Pest The New York Times

Why do fish kill themselves? - Quora

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Giant goldfish in the Great Lakes: Study

Why giant goldfish are storming America's Great Lakes and wreaking

Ontario's Growing Goldfish Problem - University of Toronto Magazine

Giant Goldfish Are Bad News for the Great Lakes