It usually takes 5-7 days to raise water in a new tank. The main use of water is tap water, because it contains residual chlorine, so it can not be directly used for fish farming, need to put in the sun first, let the chlorine volatilize, and then can be used as fish farming water. The time of being trapped in water is usually about three days, and bacteria need to be cultivated in order to provide a suitable environment for fish to survive.
1. Disinfection: The first step to open the new tank is disinfection, because the tank can contain some harmful bacteria, resulting in illness and death of fish, so disinfection is necessary. First, fill the fish tank with water, then pour in potassium permanganate or chlorine dioxide, soak for a period of time, then drain the water, and then clean it.
2. Cultivation of bacteria: The new tank needs to cultivate certain beneficial bacteria, the most important of which is nitrifying bacteria, which can convert the ammonia nitrogen produced after the decomposition of organic matter into nitrate. Ammonia nitrogen is harmful to fish, while nitrite is harmless and can also become nutrients for aquatic plants. The method of cultivating bacteria is very simple, just pour nitrifying bacteria into the tank, and then turn off the light for a period of time.
3. Test the water: In order to ensure the success of opening the tank, you need to put a few fish into the tank to test the water. Generally choose more solid varieties, such as guppy, put the fish into the tank, raise the first half of the month, if there is no illness and death can raise the fish you want, otherwise you have to re-open the tank.
