If you want to keep the water temperature in winter, you only need to install a heating rod. The heating rod can detect the water temperature, and when the temperature reaches the set target, it will stop working, so there is no need to worry about the health of the fish being affected by the constant warming. In addition, it should be noted that the water temperature should be maintained before and after changing water for fish, if the temperature difference is too large, it will lead to the death of fish.
1. Guppy: Guppy is a common small tropical ornamental fish. It has certain requirements on temperature. Although it can withstand the low temperature of 16 ℃, this environment will affect its vitality and feeding. Therefore, the temperature should be controlled between 23 and 24 degrees Celsius, too high or too low.
2. Angelfish: Angelfish is also called swallow fish, which looks like a flying swallow. This kind of fish is called the tropical fish queen, has the certain request to the water temperature, usually must maintain between 26-32 ℃. It should be noted that because it has a certain sense of territory, it is best not to mix with other fish.
3. Zebrafish: Zebrafish is a tropical fish with a lively temperament and is not afraid of cold. Usually, the water temperature should not be lower than 20 ℃, and it is best to control it at about 25 ℃. It has a wide range of feeding habits, can eat animal feed or dry feed, and mild temperament, suitable for mixed culture.
