5 Blue Diamond Shrimp - Neocaridina davidi Live Freshwater Aquarium Shrimp - 1/2 to 1 inch long Young Adults by SoShrimp 6 Blue Diamond Shrimp for Freshwater aquarium. Shrimp Size: 1/2 inch to 1 inch, young adults ready to breed. Very vibrant color. Free moss will be included for the shrimps to hold on to during the ride. 100% live arrival guaranteed.