1 BLUE CPO Dwarf Mexican Crayfish/Mini Lobster (Cambarellus patzcuarensis) - 1/2 inch to 1 1/2 inches - by Aquatic Arts This little crayfish has a gorgeous and eye-catching blue coloration that will add a burst of color to your tank! The coloration of these dwarf crayfish is extremely high quality. These do not hide during light hours like most crayfish - they are very active and mobile. They are also peaceful and do well in most community tanks, though they occasionally have been known to make a meal of dwarf shrimp. I keep them in a tank with guppies, moss and live plants, and they never bother any of their tank mates. Easy to care for - the CPO crayfish feeds on leftover food or almost any kind of fish food. All InvertObsession brand plants and animals come with a 100% live arrival guarantee, plus free email support directly from the owners!