There are not too many requirements for loach culture. The soil with weak acidity, less sediment and good water retention is the best, and the soil in most parts of the country can meet the requirements.
Misgurnus anguillicaudatus likes to inhabit the bottom of still water, and often appears in lakes, ponds, ditches and muddy surfaces rich in plant debris at the bottom of paddy fields, so it has strong adaptability to the environment. The domestic water temperature is 1 ~ 3℃, and the optimum water temperature is 25 ~ 27℃, so it should be a warm-water fish. When the water temperature rises to 3℃, the loach dives into the mud to spend the summer. In winter, when the water temperature drops below 5℃, it is drilled into the mud for wintering at a depth of 2 ~ 3cm.
extended data;
Misgurnus anguillicaudatus can breathe not only by gills, but also by skin and intestine. Breathing through the intestine is a unique physiological phenomenon of loach. The intestinal wall of Misgurnus anguillicaudatus is thin and rich in blood vessels, which has the functions of assisting breathing and gas exchange. < P > When the dissolved oxygen in the water is insufficient, it can drill out of the water surface to swallow the air, and after gas exchange in the intestinal tube, the waste gas is discharged from the anus. Its resistance to anoxic environment is far superior to other cultured fish.
Therefore, it is a cultured fish with great potential for increasing production. According to the experiment of sealing device, loach began to die when the oxygen in the water solution was as low as .46 mg/L -.48 mg/L. In the case of pond culture, loach will swim to the surface of the water to swallow the air and breathe in the intestine during hypoxia, so even if the dissolved oxygen is lower than .16 mg/L, it can still be safe and sound.
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