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Why and how to change the water in the aquarium

The aquarium needs to change water every other period of time. There are two main reasons for changing water. One is that changing water can improve water quality and avoid fish illness caused by water turbidity, which is very helpful to its health. Another is that changing water can stimulate fish growth and accelerate metabolism. Generally, the trapped tap water shall be used for water change. The water change interval shall be determined according to the water quality, and about one quarter of it shall be changed each time. 1、 Why should the fish tank change water? The purpose of changing water in the fish tank is to keep the water quality clean and hygienic. Although filtration in the fish tank can delay the deterioration of water quality and keep it clear, the long time of water will still have a negative impact on the growth of fish, so changing some water regularly can also stimulate the fish, so as to promote metabolism and accelerate its development. 2、 How to change water 1. What water to use: tap water or purified water is usually used to change water for the fish tank, but it is not recommended to use the tap water just connected. The residual chlorine in it will have a bad impact on the fish. Therefore, two to three days before preparing to change the water, it is necessary to connect the tap water and put it in a sunny place for drying, so as to volatilize the chlorine and ensure the safety of water quality.

2. How much to change: pay attention to the amount of water to change. Too little change will have little impact on improving water quality. Too much change will lead to stress reaction and even death of fish. Therefore, it is generally necessary to change one-fifth or one-quarter of the water, and not more than one-third of the total amount.

3, a few days: the cycle of water exchange is generally not fixed, which is mainly based on the water body. If the filtration is awesome in the cylinder, it is no problem to change it once in half a month. If the water is very easy to muddy, it is necessary to change the water properly, but the fastest can only be changed in three to four days, otherwise it will stimulate the fish.

4. Precautions: pay attention to the control of water temperature when changing water, and keep the temperature difference between new water and old water within 1-2 ℃. In addition, do not change the water violently. Draw the water from the bottom with a water pipe, and then slowly mix the new water from the cylinder wall to keep the water level at the previous position, and the water change is completed. (YuGangWeiShenMeYaoHuanShui,RuHeHuanShui)