HOW LONG DOES IT TAKE FOR A BIOFILTER TO START WORKING?
• When a new pond is built it will typically take 4 to 6 weeks before the biofilter is working effectively. Therefore during this period introduce new fish slowly. • A continuous supply of oxygen is required to enable the bacteria in the filter to live. This is why a pump must work 24 hours per day since the water is the source of oxygen for the bacteria and without the oxygen the bacteria die quickly and certainly within 8 hours.
