I have recently installed a Boase Aquamax 6000 pump in my small garden pond. Unfortunatly I think the pump is too big as my pond surface is covered in foam. I am unable to see my fish or anything else through this foam. Is this foam oxegenated water and is it caused by too much flow down my waterfall? I am not able to restrict the pump flow by inserting a valve in the hose line as this will cause the pump to cut out. Is there anything else I can do other than replace the pump for a smaller one.
Please help.
Chris Burton.