For pretty much every three goldfish we here at WMPDT.com buy from the pet store, one lives a long life and the other die of unknown causes fairly early on no matter how careful we are with water quality, food, etc. So we always thought of them as fairly fragile and were surprised to learn that dumped goldfish reproducing in the wild is a problem.

But, apparently it is. A big one!

According to an article published in the Business Insider in April, thousands of goldfish “invaded” West Medical Lake in Washington, leaving the Department of Fish and Wildlife to suspect a few irresponsible pet owners.