Shelled eggs are the products of the molting of artemia cysts, which are the open feed for small fish and shrimp, and the energy source that fish rely on for survival when they are young.

Shelled eggs are a widely distributed and salt tolerant crustacean species worldwide. Currently, over 85% of aquaculture animals in the world use shelled eggs as their source of feed for breeding. As an important bait organism, it has always been widely valued by people. It contains abundant protein and fat (about 65% protein and 20% fat), and its adult body also has high nutritional content, making it a natural bait for fish, shrimp, crabs, and other juveniles and adults. Its rich natural protein and unsaturated fatty acids are of great help in improving the health of juvenile fish and shrimp; Natural carotenoids can promote body color enhancement in fish. The egg diameter is around 220 microns and can be directly fed.