Tropical Fish in the Austrian Alps

[Wildfisher]

This is bizarre and worth a watch.

[Bobfly]

Fish tank fly tipping !!!! Dumping tanks with fish, insects and plants.

[Fishtales]

We have Terrapins in the canal and loch here

[Wildfisher]

There were terrapins just along the road in Balgavies Loch reserve, might still be some there.

And all that Canadian pond weed must have come from somewhere. The big difference of course is the tropical fish will never spread past the hot springs, they are  effectively in a tank.

[Fishtales]

Unless of course over the years one or two survive in some cooler water and breed then a few years later some of those survive in still cooler water and breed. Evolution at work, tropical fish in cold water. Remember too that some of them come from areas where low temperatures can go drop into the 60'sºF.

[Wildfisher]

Either way introducing aliens is not a good idea -  unless they are trout of course.