PondXpert Greenstop 9000 UVC - 11 Watt Pond watergarden Do I need a pump

Do I need a pump with this filter

The water flow rate is 120–240 l/h and can be adjusted with the water diffuser

Complete aeration kits for ponds

and Ocellaris 850 filter (internal/external depending on model)

flow rate l/min 183 Max

PondXpert Greenstop 9000 UVC - 11 Watt Pond watergarden Do I need a pump11w UVC Unit. DESCRIPTION A pond UVC exposes your pond water to powerful UV rays. These rays cause the microscopic algae to floculate (stick together) forming larger particles which sink to the bottom of the pond, get picked up by your pond pump and then get caught in the pond filter sponges. This entry level model is perfect for ponds up to 9000 litres (2000 gallons). FEATURES Extra long power cable (8. 5m).