The water pump of the fish tank does not produce bubbles, generally because the air pressure is smaller than the water pressure, so although there is water flow, there are no bubbles. In this case, you need to adjust the pressure of the pump, as long as the pressure increases, there will be bubbles out. It should be noted that the pressure should not be too high, otherwise it will increase the water flow.
Long-term use of the water pump may encounter the problem of blockage, in this case, there will be no bubbles. At this time, it is necessary to close the pump in time, then take it apart, clean all parts, clean up the dirty things inside, then reinstall it, and then open it for use.
The position of the water pump cannot be too low, because it is connected with the fish tank through the water pipe. If the position is too low, the water in the fish tank will be pumped out by the water pump due to the siphon phenomenon. This situation will not only affect the normal use, but also cause damage to the water pump if it is serious. Therefore, the pump must be placed higher.
In addition to the problems with the water pump, the piping connected to the water tank may also have problems. For example, too much dirt has accumulated at the air outlet, causing it to be unable to vent normally. In this case, it will be all right as long as it is cleaned up or a new pipe is replaced.