Tap water can be used for fish farming, but the tap water that has just been connected cannot be used, because the water contains residual chlorine, which will have a negative impact on the health of fish, so it needs to be dechlorinated. There are many ways to remove chlorine, the most commonly used is the drying method, put water in the sun for a day or two, or let it sit for a week, so that chlorine will dissipate. In addition, aeration or drugs can be used to remove chlorine.
1. Airing: Airing dechlorination is a common method, and the operation is relatively simple, but it should be prepared several days in advance. The time needed for drying and drying is not the same, drying water is faster, as long as one or two days can be, drying words about a week or so. It should be noted that the water that has been sunned for too long can not be used, such water is easy to breed harmful bacteria.
2. Aeration: Aeration is generally used for changing water. In this way, the speed of chlorine removal is very fast. Generally, it takes one or two hours, but the amount of water to be treated is not large. Usage is also very simple, need an oxygenation pump, put the tube into the water oxygenation can be.
3. Drugs: Drugs for chlorine removal are mostly used in aquarium stores. Because the amount of water used is too large, it cannot be satisfied by drying water. Families seldom use them because the amount is not easy to control. The general dechlorination drugs are Haibo or Yulebao, so the dosage must be controlled, otherwise it will cause harm to the fish.
