for the first time? New fish in the tank can change water for the first time after a week. Usually there is a period of adaptation for new fish to enter the tank, which takes about three to seven days. If the water is changed during the adaptation period, the water quality will fluctuate, which is also very harmful to the health of the fish. Therefore, it is necessary to wait until the adaptation period is over and the fish begins to move before changing the water for it. And the amount of water change should not be too large, so as not to stimulate it with new water.
1. Disinfection: New fish into the tank should be disinfected first, because foreign fish may carry some germs, which will be transmitted to healthy fish when they enter the tank, which will cause them to get sick. Therefore, it is necessary to prepare potassium permanganate solution first, soak the new fish in it for a period of time, and then prepare it for the tank.
2. Overheating: As there is a certain difference in the temperature between the water in which the new fish lives and the water in the fish tank, the fish cannot be directly put in, and it needs to be overheated first. The method of overheating is very simple, just put the bag of fish from the top of the fish tank, but do not immerse it completely, wait for the temperature of the two to gradually converge.
3. Water passing: In order to make the new fish adapt to the water quality of the fish tank, it is necessary to pass water after the temperature is too high. Take out part of the water from the fish bag, pour it into the fish tank, then take out part of the water from the fish tank and pour it into the bag, exchange it every 10 minutes, after about 5 times, the bag can be taken away and the fish can enter the fish tank.
