Hi, i have just started off a new pond and although the water is
crystal clear there is a green film over everything else thats in the
pond, the lights, the liner, the pumps, everything. The pond has only
had water in it for a week now and has been constantly running through
a "clearpond 25" filter, the pond contains 2300 ltrs of water and is
being pumped through the filter near to 2000 ltrs per hour, the filter
also has a built in uvc. Please could you give me any advise as to why
this is happening and how i can prevent/stop it from continuing. Many
thanks in advance for any help you can give. Simon