in the fish tank with filtration? The water in the fish tank with filtration is usually changed once every two weeks. Filtration equipment has a good maintenance effect on water quality and can delay the deterioration of water body, so it is not necessary to change water too frequently. However, it should be noted that the water quality will still be aging, so the amount of water change is also larger, generally about one third of the amount of water change, so as to ensure that the new water is sufficient, so as to avoid the rapid deterioration of water quality.
for the fish tank 1. Change the water time: Change the water usually when the climate is warm, and it's better to change it during the day. When the fish rest at night, it's easy to disturb it. Usually, there is no fixed cycle of water change, generally depending on the water quality, the better the maintenance, the lower the frequency of water change.
2. Water change method: Before changing the water in the fish tank, the old water needs to be pumped out. Generally, siphon action is used to pump water, and it will be more convenient if there is a pump. Water must be pumped from the bottom, which can play a role in cleaning. Then the new water is slowly added from the wall of the jar to avoid fluctuation.
3. Precautions: Be sure to pay attention to the temperature when changing the water. The temperature should be consistent before and after, and the difference should not exceed 2 ℃. So before changing the water, we need to measure the temperature of the old water, and then add new water from it.
