First: fish tank. First, disinfect the fish tank with potassium permanganate, and then rinse it with clean water. All kinds of filtration equipment, oxygen pumps and heating rods are thoroughly cleaned and exposed. Then let the water rest for 2 to 3 days. In order to increase the stocking amount in the fish tank, the newly bought fish can't be stocked according to the above method. Should be stocked in another container for 7- 10 days, and then put into a fish tank to feed together to prevent pathogens from being brought into the tank and infecting healthy individuals. (very important)

Second: water body. The pH value of the water in the fish tank should be neutral (PH7-7.4). The water in the fish tank is dirty and white, which is most likely to cause dead fish. In this case, measures should be taken in time or all the water should be replaced. The water temperature is generally kept between 15-25℃. Pay attention to the water temperature to make it warm in winter and cool in summer. (Let nature take its course)

Third: bait and feeding methods. Feeding must be regular and quantitative, not too little or too much. When feeding bait in the aquarium, special attention should be paid to the feeding amount, which should be 70% to 80% according to the daily viewing situation, otherwise it will cause adverse consequences, ranging from indigestion of fish to leftover food, which will damage the water quality. It is best not to feed at night.

Fourth: Try not to mix different fish. Glass jars should be used more in the open air and less indoors. It is best to see the sun before it comes out and put it on the balcony.

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