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How to change the water in the fish tank? How to change the water?

Trapped water in advance: To change water for the fish tank, you must first trap water in advance. By drying in the sun, etc. The chlorine inside can be volatilized clean. Pumping and water injection: firstly, the old water in the tank is pumped out, and then the prepared new water is slowly poured into the tank wall. Water change cycle: Usually, there is no fixed cycle for changing water, because the size of the fish tank and the feeding density are different. Note: When changing water, pay attention to the change of water temperature. First, trapped water in advance to change water for the fish tank, first of all, trapped water in advance. Because the water used for fish farming is mostly tap water, this kind of water is not polluted, but there will be a small amount of chlorine in it after disinfection, which is not good for the health of fish. Therefore, it is necessary to evaporate the chlorine inside by drying and other means to ensure the safety of fish.

Second, after pumping water to prepare new water, you can start changing water. First, pump the old water out of the tank. You can pump it with a water pump, or you can find a pipe to pump it out with the help of a siphon. Don't smoke too much, usually change it to one fifth. After pumping out the old water, slowly pour in the prepared new water from the cylinder wall. Be careful not to pour all the water at once to avoid water quality fluctuation.

Thirdly, there is usually no fixed cycle for changing water, because the size and feeding density of fish tanks are different, so the water quality maintenance is not consistent. If the water quality deteriorates rapidly, it should be changed every three days, but the amount of water changed is less. If the water quality deteriorates slowly, it can be changed once every half month, and at most it can be changed by about one third.

Fourth, precautions should pay attention to the change of water temperature when changing water. Temperature has a great influence on fish. If it is not well controlled, the fish may have some stress reactions. Usually, the water temperature should be measured before changing water, and then the temperature of fresh water should be adjusted according to the water in the fish tank to make them consistent, thus reducing the impact on fish.