As the saying goes, "The spring fish release the fish, the winter fish is three minutes long." The annual winter solstice to the beginning of the spring time, is the golden season of freshwater fish stocking. Because of the low temperature during this time, the water quality is relatively stable and the fish species are of good constitution. In winter, the following points should be taken care of when placing fish species.
Preparation of effort is essential to make use of the winter season to transform Xiaotang, shallow ponds, dead water ponds, and leaky water ponds. Fish ponds with better conditions are also required to be trimmed and put into dry pond water, and the thick silt is dug after sun exposure or freezing. Eradicate weeds, heighten ponds and ponds, and disinfect with lime ponds.
Selection of fish species is the key to the winter fish species should choose normal shape, strong physique, rich back muscles, short thick tail, scales intact, smooth surface with mucus, eyes bright, lively, slightly larger specifications of the blue About 12 centimeters of grass, squid, 10 centimeters of squid, and about 6 centimeters of squid. Fish species are generally selected between the water temperature of 6 °C ~ 10 °C, the weather is sunny in the afternoon, put in, rainy, foggy days should not be put. Generally, it is appropriate to put 200 to 250 fry per acre pond, and fish ponds should often be patrolled after they are put. Once the weather turns cold, deepen the water level in time to avoid a sharp drop in water temperature. As the water temperature increases in sunny days, some concentrated feeds can be put in order to promote rapid growth of fish species.
Investment in fish and water is not mistaken. Some reservoir contractors have relatively weak awareness of putting fry. In fact, the water quality of the reservoir is good and the pollution is low. The fish raised is very popular. Water is correct. Reservoir fish should be selected clean water fish species, such as the choice of feeding catfish this phytoplankton filter-based fish. After the carp was put into use, it was equivalent to recruiting free "cleaners of the water body" and "supervision of water quality" for the reservoir, so that the eutrophication of the water could be effectively contained.
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