How long should the filter and oxygen adding device of the fish tank open in a day? In principle, the filter cannot be closed for 24 hours,The oxygen pump can see the situation,When the temperature is high or can be opened within 2 hours after feeding,If it affects your rest at night, if the fish does not float and does not breathe quickly,Then you can turn off the filter when the temperature is high or the fish is in short breath. it can't be turned off from the beginning,Because nitrobacteria need water,The water will start to die in four hours,All will die in 24 hours.Will spoil the water.The oxygen pump can be 3-a day for ordinary fish as long as the filter is open-Four hours,It takes 24 hours for high-oxygen fish to open.
If you want to learn to do powder coating filter, where can you learn? I haven't heard of this kind of lubricating oil,There is no relevant information.The SMUR filter factory was founded in 2000,,Is the production filter,Oil Filter core,Professional manufacturer of filter element of purification dust removal equipment,Mainly engaged in gas filtration and separation technology,Research and development of filtration products for fluid pollution control and high-tech enterprises made.Main production: filter element,Filter,Filter,Oil filter,(1) dust removal filter element, dust removal filter cartridge, dust removal filter bag, dust removal filter bag, dust filter element, sterilization, odor removal filter element and powder Recovery filter element for industrial gas, industrial dust, coating equipment and environmental protection equipment.(Two) localization of industrial oil, fluid filtration, hydraulic, lubrication system, high-precision oil filter element and non-standard filter element, pipeline filter ele