. If the water is changed too frequently or the amount of water is changed too much at one time, the new water will stimulate the fish, which will cause them to keep swimming and look restless. Therefore, we must pay attention to the frequency of changing water at ordinary times. It should be changed once a week at the soonest. If there is filtration, it is no problem to change it once a half month. Moreover, the total amount of water changed each time should not exceed one third, and it should be kept between one fifth and one quarter.
, generally new fish into the tank, will have an impact on the fish originally living in the tank, they may be frightened and swim around. For this situation, the best way is to isolate and rest, new fish are separated by isolation boards, avoid being close to other fish, and then put them together after a period of time.
to raise fish too much, if the feeding density is high, it will cause some pressure on them, which will lead to fish swimming. According to the size of the fish, to control the total number, big fish should be raised less, although small fish can be raised more, but there are certain restrictions. If there are too many, it is better to divide some of the fish into other tanks.
usually show little vitality when they get sick, but some diseases can make them restless, such as Chinese disease, trichodiniasis, third-generation worm disease, etc. These are all diseases caused by parasitic infections, which need to be treated with drugs or potassium permanganate.
