Aquatic Arts 1 Male/Female Pair of Electric Blue Crayfish/Freshwater Lobsters (2-3 inch Young Adults) We guarantee a very high-quality, breeding age young adult male/female crayfish pair for this listing! Caution should be exercised when keeping large crayfish. The general rule with crayfish is: if it can catch it, it WILL try to eat it! As with all of our crayfish, the coloration of Electric Blue Crayfish is EXTREMELY high quality - much higher quality than others on the market! These crayfish may TEMPORARILY change color after molting, which may occur during shipping. If your crayfish is not blue and you find a molt in the bag or in your aquarium, do not worry; this is normal and the bright color will return in 2 weeks or less.