How to use Pump oxygen tank , first strike oxygen pump 1. 2. 3. rubber tube the sand next step. Remove rubber tube connected to an oxygen pump next step. Bring sand plug the other end of the tube rubber.
How to use the oxygen pump aquarium first tiem equipment 1. Pump oxygen 2. หลอดยา D 3. Sand the next step. The tube rubber plug to pump oxygen the next step. The head of sand plug with the ends of the rubber tube