1, sand light fish, mostly grown in the Yellow Sea waters, it is also known as the push wave fish, sand stroll fish, geoduck, day wave fish, light fish. Scientific name "spear-tailed compound goby", belongs to the order Perciformes, Gobiidae, compound goby genus, is an annual warm temperate offshore demersal fish, adapt to the temperature and salinity of the ability to be strong. Its meat is tender, delicious flavor, rapid growth. In China's coastal distribution, Lianyungang City coastal distribution is particularly wide. Spear-tailed shrimp goby in Lianyungang local commonly known as "Shaguang fish", known as "fat head fish" in Liaoning.

2, this fish wild a lot of seawater into the shrimp ponds, but also against the water, into the river and finally into freshwater ponds.

3, seawater farming is very easy to enter yourself at the time of the water change, but also in the sea and river gully with a net to catch.

4. Freshwater aquaculture requires desalination and then put into the pond.

5, in the past, to raise shrimp as a priority, afraid of sand light fish to eat shrimp, and sand light fish is cheap, allowing outsiders to fish casually. Now, the price of sand fish up, and shrimp easy to get sick, available sand fish eat sick shrimp, to prevent the spread of shrimp disease. Breeding of sand fish, two birds with one stone.