The salt in the fish tank can be used for sterilization. If the fish is sick or the inner wall of the fish tank is dirty, you can add some salt to sterilize it. In addition, adding salt can reduce the chance of fish getting sick, especially during illness, which can keep the fish stable.
Generally, 0.3-0.5% salt is enough.
After the operation of the extended data aquarium, the water will evaporate at ordinary times, which will reduce the water level and increase the density of water day by day. Need to replenish fresh water every once in a while. After replenishing fresh water, check whether the density of water is appropriate.
When measuring salinity, the temperature must be lower than 25℃. At present, the most advanced equipment for measuring salt content is the conductivity meter for measuring seawater, and the conductivity value of standard seawater should be between 47 ~ 5 1 millisiemens/cm.
Related reasons for putting salt in fish tanks:
Put salt in the fish tank to sterilize it.
Because the salt content of water in bacteria is lower than that in external water, adding salt after changing water in fish tank can effectively inhibit bacteria and achieve the purpose of sterilization.
As we all know, raw salt is different from edible salt, which contains a lot of trace elements, and is an indispensable factor in koi fish fish.
Reference Fish Tank _ Daily Maintenance-Baidu Encyclopedia