"Benign" exotics?

<p>I have heard that schools of goldfish, the kind usually kept in a bowl, can be found swimming in relatively large schools in ponds and waterways across North America, even locally here in Minnesota. When I was a child, I saw such schools of small, pet goldfish swimming in Fossil Creek in Richland Hills, a suburb of Ft. Worth, TX (my family lived their briefly back in the Stone Age). I googled this creek, and now it appears it&#39;s surrounded by golf courses and fancy housing developments. I doubt the goldfsh are still swimmin&#39; wild and free..if they&#39;re still there they probably have to pay association dues...</p> <p>&nbsp;</p> <p>Anyhoo, I was in a cavernous pet superstore today, admiring the fishies as usual, and stopped to coo at the betas. Then I wondered: if, like the goldfish I saw as kid swimmin&#39; wild &#39;n free in the suburbs of Ft. Worth, there were any such populations of betas swimmin&#39; wild n&#39; free in ponds and waterways across North America too...</p> <p>&nbsp;</p> <p>Reekfish (you are queen of the roughfishers and microfishers!!! I&#39;m not worthy!!) in particular, and of course any and all other roughfisherfolks, have you seen any populations of &quot;feral&quot; or wild &nbsp;betas?&nbsp;</p>