to change the water in the aquarium every few days. It is best to change the water in the aquarium every five days. Changing water is an essential step in fish farming. No matter how big the fish tank is and how strong the filtration is, the water quality can not be maintained all the time. The ammonia nitrogen content in the water will increase. Even if the water looks clear, it will cause toxicity to the fish. It should be noted that the change of water should not be too frequent, and the amount of water should not be too large each time, otherwise it will stimulate the fish body, or even cause stress reaction.
for the aquarium 1. Drying the trapped water: Before preparing to change the water for the aquarium, you need to dry the trapped water first. Because the water usually used is tap water, which contains a small amount of chlorine, chlorine can be volatilized through the way of trapped water, thus ensuring the health of fish. It usually takes one day to dry in summer, two days in spring and autumn, and about three days in winter.
2. Pump water and add water: The first step of changing water is to pump water. First, pump out the old water in the jar. If it is a small fish tank, find a pipe and use the siphon method to pump water. It is better to use a water pump for a big fish tank. Pumping should start from the bottom of the water, which can also clean up the dirt at the bottom. After the water is pumped, new water is added from the wall of the cylinder.
3. Pay attention to the water temperature: The most important thing to change the water for the fish is the water temperature. If there is a fluctuation, it will take a long time for the fish to adapt, which is also harmful to its growth. Therefore, before changing the water, first measure the temperature of the old water, and then add hot or cold water to the new water to adjust the temperature.
