Koi is a common ornamental fish, but also a very good adaptability of fish. It has a relatively large range of adaptation to water temperature, between 5-30 degrees, it can survive normally. You can prepare a heating rod before you breed them, but you can use them to heat the koi later depending on whether you need them. Whether heating is needed in different areas is also different. For example, in tropical and subtropical aquaculture, the temperature itself will be relatively high, and there is no need for artificial heating; However, if Koi are cultured in temperate or even cold zones, the temperature may be relatively low in winter, when heating rods and other tools are needed to heat them.
In addition, when the koi are sick, they will have a higher requirement for the surrounding water temperature, at this time, they can raise the water temperature by heating, about 28 degrees is better, which is conducive to their recovery. It should be noted that when using the heating rod, the water temperature should not change too much, and the water temperature should not change more than 2 degrees.
Koi can be placed in the sun to raise, the sun for them is relatively large benefits, such as can kill some of the harmful bacteria in the water, to prevent them from getting sick, but also conducive to their color, as well as increase the water temperature, improve their appetite. Moreover, if there are some green plants in the water, light can also promote their photosynthesis. However, in summer, the light can be very strong, if the sun shines for a long time, the water temperature will rise very fast, so you need to avoid direct light, you can receive a certain amount of light in the morning and afternoon.
