? The cycle of changing the water in the fish tank is not fixed. Some change it every three or five days, and some change it every half month. The reason why there is such a big difference depends mainly on the maintenance of water quality. If the water deteriorates quickly, it should be changed every three or five days, otherwise it will affect the health of the fish, but it can not be changed more each time, one fifth of the total amount of water can be changed. If the filtration of the fish tank is very good and the water quality is well maintained, it can be changed every half month.
should we pay attention to when changing water? 1. Frequency: The first thing we should pay attention to when changing water is frequency, because changing water too often will stimulate the fish, and changing water too lazily will deteriorate the water quality and affect the health of the fish. Usually, before the water body is turbid, it is necessary to change the water. The frequency is not fixed. The water quality will deteriorate quickly and it will be changed every few days. If it is maintained well, it can be changed every half month.
2. Amount of water: Due to the different frequency of water change, the amount of water changed each time is also different. If the change of water is more frequent, then the amount of water each time should not be too large, otherwise the fish will not be able to stand, each time about one fifth can be changed. If the water change cycle is very long, it can be changed a little more, but not more than one third of the total amount.
3. Temperature: Fluctuation of water temperature is most likely to cause fish to be stimulated. Therefore, the temperature before and after water change must not be too different. The water temperature can be controlled by adding hot water to the new water.
