How do you raise crayfish at home in a container?

Answer 1

Easily. They aren't fussy. They're scavangers and will eat whatever lands on the bottom of their cages- leftover table food, shrimp pellets, sinking fish food, you name it.

Question #3 here explains how to set them up in an aquarium: http://crayfish.byu.edu/faq.htm

This story tells of a classroom that raised crawfish- there were hundreds of babies in a short time.
http://www.lawrencehallofscience.org/foss/newsletters/last/FOSS27.crayfish.html