There are a few places in New Jersey, New York, and Pennsylvania where you can catch them yourself.
I personally wouldn't care if I had to go even further away to collect them. Just a handful of them in a pond with no predators will turn into many within a years time.
I could try to breed them indoors in an 8' stock tank. If I could be successful in getting just two pairs to spawn I could turn 4 fish into 10,000 pretty easily.
I don't need to purchase them. I'm more than happy to go the slow route just to have them in my pond.
