In order to attend the patrol hall, it is generally necessary to inspect the fish three times a day, that is, to observe whether the fish has floating heads at dawn or not; to check the fish activities and eating conditions at noon; to check the whole-day feeding condition and whether or not there are floating head signs at dusk. To remove the leftover grass and dirt in time, cut the weeds in the pond to avoid polluting the water and affecting the amount of dissolved oxygen in the water. The high temperature of hot water in the sky, the large amount of fertilizer used for feeding, the amount of organic matter in the water, and the increase of oxygen consumption, make the fish susceptible to lack of oxygen and produce floating heads. In hot nights or in thunderstorms, we must pay special attention to this. A slight oversight can cause flooding and cause major losses. Therefore, in addition to the regular adjustment of water quality, the floating head should be found, and new water should be added in time or aeration machine to increase oxygen, and at the same time stop the fertilization and control the amount of food, shorten the eating time, prevent fish floating head, and ensure no loss. Frequency Induction Heater ,High Frequency Induction Heating,Induction Heating Aluminum Frequency,Low Frequency Induction Heater Dongguan Jinwang Ultrasonic Equipment Co.,Ltd , https://www.jwultrasonic.com