If the water temperature rises gradually, the fish should not die, but if it suddenly rises, it will cause a large number of fish to die. The water temperature of 30 C is only suitable for the survival of some fish, such as colorful fish, arowana, arhat and parrot fish, and many small tropical fish are often difficult to grow in this condition for a long time.
1, light warming: light warming is a more common method, the advantage of doing so is to save time and effort, and do not worry about the temperature is too high. However, the speed of raising water temperature is very slow, and it will also accelerate the evaporation of water, so it often needs to add water regularly, if the water control is not good, the temperature will drop back.
2. Use a heating rod: The heating rod is a special equipment for the fish tank. It has no other shortcomings except that it has high power and is easy to consume electricity. In addition, it is convenient to control the temperature, and the heating effect is also very good. If you want to raise tropical fish, it is better to equip a heating rod in the tank, so that the temperature can be controlled better.
3. Pour hot water: This method is not particularly recommended. On the one hand, adding hot water to cold water may cause water quality fluctuation in addition to water temperature change. In this way, it will stimulate the fish, causing it to produce some stress reactions, and even affect its survival. In addition, the operation is not convenient, but the temperature control effect is better.
4. Put the thermos bottle: This method is also quite common. Prepare a bottle filled with hot water and put it into the fish tank. This is safer. It will not cause the water temperature to rise sharply. At the same time, it can prevent the water temperature from being too high. However, it needs to be replaced regularly, and the heating speed is not fast.
