Why do fish lack oxygen?
At this time, on the one hand, it is best to deepen the water depth of the pond, on the other hand, an aerator can be used, and on the other hand, the frequency of changing water can be accelerated, so that the continuous flowing water can increase the oxygen content of the pond, so that the guarantee is higher.
/iknow-pic.cdn.bcebos.com/a8014c086e061d950c 52094a74f40ad162d9caaf "target =" _ blank "title =" "class =" ikk. /iknow-pic . cdn . BCE Bos . com/a 80 14c 086 e 06 1d 950 c 52094 a 74 f 40 ad 162 d9 caaf? x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ N/2014/0227/c340887-20664229.html "target =" _ blank "title =" People's Daily Online-Fenhe River drifts into pieces of dead fish. Response: Fish died due to lack of oxygen in different seasons "> People's Daily Online-Fenhe River drifted into a dead fish. Response: Fish died of lack of oxygen due to seasonal changes.
/baike . Baidu . com/item/% E9 % b 1% BC/22 1? Fr = Aladdin "target =" _ blank "title =" Baidu Encyclopedia-Fish "> Baidu Encyclopedia-Fish