With no predators and plenty of rip rap you can save money up front and let nature do its thing for reproduction. Crayfish with no predation and a good habitat will multiply like crazy.

TJ once said he stocked 75 crayfish I think and in short order had nearly unlimited supply. I think he said he trapped around 2000 and counting?

If you stock crays, forage and want natural reproduction you need to give the cycle of crayfish young to be born and grow up and reproduce again. That means stocking any other species besides crayfish no sooner than spring of 2018.

So if you are patient, the minimum order of crayfish from Smith's would be fine with me.