10 Bloody Mary Shrimp - Neocaridina davidi Live Freshwater Aquarium Shrimp - 1/2 to 1 inch long by SoShrimp 10 Bloody Mary Shrimp for your freshwater aquarium. Shrimp size: 1/2 to 1 inch, young adults ready to breed. Vibrant translucent red color. Free moss will be included for the shrimps to hold on to during shipping. Live Arrival Guaranteed!