Please can you help, I have had a problem for about 6 weeks now. I have got
a small pond and I have had a lot of trouble with fish not surviving in the
water. I have had the water tested for the usual PH and nitrate problems all
coming back ok. I have emptied the pond scrubbed the liner and refilled.
This time I changed the water circulation so I have several fine jets of
water from my pump back into the pond to get more oxygen into the water.
This time I have not stocked the pond or put any plants into it I plan to do
this after a week or so. My problem is that after 2 days a layer of white
film has formed over the bottom of the pond all over the liner. I live in
north Kent and we have very hard water. I do not know what the film is or if
it is safe for fish. We have not sprayed or fed any plants I have talked to
southern water who are not interested because it is a pond and not domestic
water supply. Have you got any ideas?