for a one-meter fish tank? A one-meter fish tank can generally hold 300 liters of water, and 900 grams of salt is needed. Depending on the size of the fish tank, the amount of salt needed is also different, but basically it is about three to five thousandths of the weight of the water, too much or too little. In addition, if the fish is not sick, it is generally not necessary to put salt, because it is not good to control the salinity, which will be harmful to their health.
1. Seven days: If the amount of salt is three to five thousandths, the impact on fish is not great, so it can last for about seven days. Although this concentration can not kill bacteria, it can prevent harmful bacteria from continuing to invade the fish body, thus providing some help for its rehabilitation.
2. Half an hour: If the amount of salt is 1%, this concentration of salt water will have a certain bactericidal effect, but it will also cause certain side effects on fish. Therefore, it is necessary to use a special container to soak. Salt can not be directly put into the tank. The soaking time is generally not more than half an hour.
3. A few seconds: If the amount of salt is 3%, the fish can only be immersed in it for a few seconds. After a long time, they will feel uncomfortable and even die. Therefore, do not use this concentration of salt water for medicinal bath unless absolutely necessary.