is the concentration of salt water used for fish fry disinfection? The concentration of salt water used for fish fry disinfection is about 1-2%. Usually, fish are rarely disinfected with salt water. If the dosage is not well controlled, it will do great harm to the fish. Moreover, attention should be paid to the soaking time. If the soaking time is too long, there will be some discomfort, so it usually can not exceed 20 minutes. It should be noted that salt water disinfection is to disinfect the fry, not to put the fry first and then use salt water, but to put the fry after disinfection.
concentration of salt water? 1. Three thousandths: Usually, the concentration of salt for fish is about three thousandths, not more than five thousandths. The purpose of salt is not to disinfect, because the concentration is too low to achieve the effect of disinfection, but it can change the osmotic pressure of water, reduce water into the fish body, thus blocking the invasion of bacteria.
2. One percent: The concentration of one percent is used for disinfection, but fish cannot be kept in this concentration of water. Generally, there is a certain time limit for immersion. Usually, this concentration of salt water is needed to cure some body surface lesions.
3. Three percent: The concentration of three percent is relatively high, and the sterilization effect will be better, but the side effects on fish are great, only in some serious diseases can we take the risk, and the soaking time is only a few seconds, if there is a slight discomfort, we should immediately fish it out and put it back into the water.
