A LITTLE WILDLIFE POND - covered with pondweed

Tap water I read in a gardening book creates the rapid growth of pond weed.

Beauty garden

Thanks for your info 6d, I've also heard that, but that is usually blanket weed they mean, the weed on this pond was a floating weed like duckweed.
Thanks Paul for looking and for your comment. I've been looking at yours today, lovely photos.

Thanks :) is your pond with a filter Linsuffolk ?

Paul, we haven't got this wildlife pond now, it was already here when we bought the house. I loved it as the frogs kept spawning in it , but after a few years we decided to get rid of it as it was practically outside the back door, and in the summer it used to smell!! The frogs now use the small fish pond, but may decide to make another wildlife pond for them. The pond never had a filter.