If you want to operate more than just one air stone with your air pump, you’ll need an air distributor. This JBL ProSilent Control distributes an air connection very precisely to two outlets, which can be regulated individually. If necessary, one (or more) distributors can be connected.
An air pump for the aquarium is a good thing at night because plants stop producing oxygen when there is no light. In aquariums with sparse planting the pump provides the necessary water circulation. In aquariums with dense planting, the air pump supplies the aquarium with oxygen at night, as the many plants can lead the oxygen content to drop dangerously. When treating disease, many medications require an increased oxygen content in the water, and the air pump enables this
If you’d like to buy a JBL ProSilent Control or are looking for additional information: JBL ProSilent Control
Find out more about the technical options for aerating an aquarium here: Air pumps