My wife asked, "You have all these ponds, why don't you have any crawfish?" I don't know why I don't have any crawfish. Three ponds have predators so they wouldn't last long but I have one or two others that sometimes dry up that might be a possibility. And I have a small "tilapia pond" that doesn't have large predators.
Is there anything you need to grow crawfish for personal consumption other than throwing some in a pond without predators?