_ [là g incarnation], also known as "Macrobrachium macrobrachium", belongs to Arthropoda, Crustacea and Cetacea in animal taxonomy. Its shape is very similar to that of lobsters living in the ocean, so it is called "freshwater lobster".

At present, there are 4 species _ _ _ _ in China, and 3 species live in the mountains or rivers and lakes near the northeast, with tender meat and delicious taste, and few in mountainous areas; _ There are quite a few kinds of octopus, but there are three important genera: _ Octopus, Macrobrachium, Macrobrachium.

Move the crayfish caught in the wild into a large glass fish tank, spread 2-3 cm thick sand on the bottom of the tank, and put some tiles for crayfish to hide. Add water to a depth of 5- 10 cm, and tap water is also acceptable. In addition, put a small amount of aquatic plants such as Ceratophyllum. In nature, crayfish have various feeding habits. It can be fed with red earthworms, tadpoles, vegetable leaves and rice grains. It seems to like to eat everything.