当人走近鱼时,鱼群就游过来,说明鱼很健康;如果鱼显得不理不睬、呆滞,或待在一角、嘴露出水面呼吸空气等情况,可先检查增氧机、加热器、过滤纸是否正常运行,或检查鱼是否生病。养鱼器皿的水应清新透明,如变白、混浊、有异味,说明水质变坏或鱼已生病。夏季应2~3天换一次水,一般方法是从鱼缸内抽走1/3的水,再补进等量的水即可。切忌用生水或水温相差太大的水。换 When people approached the fish, the fish swam over, indicating that the fish were healthy. If the fish turned a blind eye, sluggish, or stayed in the corner of their mouth, their mouths exposed the air, they could check the aerator, the heater , Filter paper is functioning properly, or check whether the fish is sick. Aquarium fish water should be fresh and transparent, such as white, cloudy, smelly, indicating deterioration of water quality or fish have become ill. Summer should be 2 to 3 days for a change of water, the general method is to draw 1/3 of the water from the tank, then fill the same amount of water can be. Avoid using raw water or water temperature difference between the water. change