3" not including it's claws. 7 Month old P Alleni Crayfish. These stay small. The blue is it's natural color. When it molts it is a bit darker and then lightens up some once the shell hardens, but is always blue. Looking to get $10 plus shipping. Local pick up is always welcomed. Located in Linesville, PA. Am willing to trade for shrimp or other stuff. Let me know what you have.
