Posted: 10/08/2016 at 23:24
no filter, nothing except a hole full of water, or less than full by the end of summer, no real flow but when it's full and the wind blows it looks like a river. water does run out of the end when it's full so a bit of flow then. I don't think filters and wildlife ponds go together.
I couldn't find the thread I was looking for, there were some great ponds on it. Maybe someone else can find it