The heating rod in the fish tank generally has a temperature adjustment gear, as long as the appropriate temperature is adjusted according to the needs of the fish. It should be noted that the size of the fish tank is different, and the power of the heating rod is different. If the fish tank is too large and the power of the heating rod is relatively low, the ability of heating and heat preservation will be weak, which is harmful to the health of the fish.
1. Goldfish: Goldfish is a kind of fish with a wide range of temperature. It is developed from crucian carp. There are many varieties and different shapes. It has a wide range of adaptation to temperature. It can survive in the environment of 0-38 ℃. However, it is best to keep the temperature at about 18-26 ℃. The breeding period should be stable at about 20 C.
2. Koi carp: Koi carp also has strong adaptability. It can live in the water temperature of 5-30 ℃. Its own feeding habits are miscellaneous. The temperature and the richness of bait can affect its growth rate. Therefore, it is better to keep the water temperature slightly higher and provide it with diversified food.
3. Tang fish: Tang fish is also called Baiyun Jinsi. It is a unique fish in China. Although it lives in the south, it has a strong ability to withstand low temperatures. It can still survive in an environment of 5 ℃. Therefore, it can be raised without using a heating rod. It is small and feeds mainly on plankton, but can also eat humus.
