Yes, I can't prove the aquarium contents of the neighbor had these snails. I did transfer some water along with the fish when I stocked the perch (doubt any snails in there as just water and fish but who knows), with the RES and LES and LCS they came from zimmerman and only fish in the bag, tilapia came from a local aquaculture source so it is possible snails came in that way. Also had GSH and FHM from a bait wholesaler in Minnesota so certainly could have come from there.
But the BOW that had the snail certainly had to get it from somewhere.
I'm glad to hear that they are not native but also not harmful. I'll harvest adults, easy to pick ones and see what happens over time.
