When shrimps sleep, they are similar to fish. Because they are all in the water and do not have the ability to close their eyes, they often cannot be seen when they sleep. It is difficult to judge from their appearance alone. However, when sleeping, the shrimp will remain motionless for a long time, not only the body, but also the eyes. If there is something around them, they will react more slowly.
1. Look at the gills: If you want to see whether the shrimp is dead or sleeping, the best way is to look at the gills. There are many gills that are sleeping. If the gills do not move for a long time, it means that it is dead. The gills of shrimp are different from those of fish, not on the outside, but on both sides of the head and chest, covered by carapace, so it depends on whether the carapace has changed.
2. Posture: The posture of the shrimp can also reflect whether the shrimp is dead or sleeping. Although the sleeping shrimp will remain motionless, it is still standing as a whole. If the shrimp has fallen down, it means it is dead. Because shrimp rarely have sudden death, they often feel uncomfortable before death, so they will lie on their stomachs and so on.
3. Reaction: Shrimp will react slowly when sleeping, but as long as there is a certain sound and vibration, it will wake up, this time it will immediately move, and dead shrimp no matter what kind of sound can not make it have any reaction.