in winter depends on the type of fish on the one hand and the temperature on the other. First of all, fish is generally divided into tropical fish, temperate fish and cold hairtail. Among them, tropical fish has higher requirements for water temperature. The temperature must be controlled above 20 degrees Celsius. If it is not heated in winter, it is easy to freeze to death. Cold hairtail, on the contrary, is not resistant to high temperature, and the water temperature should be below 20 C. Temperate fish belongs to eurythermic fish, as long as the temperature is above 0 C, it is generally no problem.
is suitable for raising in winter? 1. Goldfish: Goldfish are suitable for raising in any season, and winter is no exception. This kind of fish is evolved from crucian carp, which has been cultivated for more than 1700 years in China. It has many species, usually divided into four series, namely, grass species, culture species, dragon species and egg species, each with different characteristics.
2, Koi: Koi is a high-grade ornamental fish, not only beautiful posture, but also colorful, very suitable for breeding and viewing. This kind of fish has a certain tolerance to low temperature, usually above 5 degrees Celsius, too low will also affect its survival.
3. Chinese fighting fish: The fighting fish is generally divided into the Thai fighting fish and the Chinese fighting fish. The Thai fighting fish is a tropical fish and must be kept alive in warm water, while the Chinese fighting fish is different. It is widely distributed in China and adapts to the climate of various places. Therefore, some of them are not afraid of the cold and are suitable for raising in winter.
