Weather loaches are illegal in Michigan because some dingass released them in a creek and they became established there. I also remember fishing a lake near our home in suburban Detroit that had feral goldfish in it. I don`t put releasing a native that has been held captive in the same league but it`s still not smart.
Do you know if it was the european weather loach or the asian one? It seems unlikely that the asian ones could survive the brutal cold there.


